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Provide tags and a correct Python 3 solution for this coding contest problem. Some time ago Lesha found an entertaining string s consisting of lowercase English letters. Lesha immediately developed an unique algorithm for this string and shared it with you. The algorithm is as follows. Lesha chooses an arbitrary (pos...
instruction
0
41,455
0
82,910
Tags: dp, greedy, implementation, strings Correct Solution: ``` s = input() cs = [''] ans = [] last = [''] poped = False for c in s[::-1]: if not poped and c == cs[-1] and c > last[-2]: cs.pop() if (not cs) or c != cs[-1]: last.pop() poped = True else: poped = False ...
output
1
41,455
0
82,911
Provide tags and a correct Python 3 solution for this coding contest problem. Some time ago Lesha found an entertaining string s consisting of lowercase English letters. Lesha immediately developed an unique algorithm for this string and shared it with you. The algorithm is as follows. Lesha chooses an arbitrary (pos...
instruction
0
41,456
0
82,912
Tags: dp, greedy, implementation, strings Correct Solution: ``` import os import sys import io import functools import copy import math # input = io.BytesIO(os.read(0, os.fstat(0).st_size)).readline # 神奇快读,无法运行调试 GANS = [] # def print(*args): # 神奇快写,最后得写上os.write # global GANS # for i in args: # GAN...
output
1
41,456
0
82,913
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Some time ago Lesha found an entertaining string s consisting of lowercase English letters. Lesha immediately developed an unique algorithm for this string and shared it with you. The algorithm ...
instruction
0
41,457
0
82,914
Yes
output
1
41,457
0
82,915
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Some time ago Lesha found an entertaining string s consisting of lowercase English letters. Lesha immediately developed an unique algorithm for this string and shared it with you. The algorithm ...
instruction
0
41,458
0
82,916
Yes
output
1
41,458
0
82,917
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Some time ago Lesha found an entertaining string s consisting of lowercase English letters. Lesha immediately developed an unique algorithm for this string and shared it with you. The algorithm ...
instruction
0
41,459
0
82,918
Yes
output
1
41,459
0
82,919
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Some time ago Lesha found an entertaining string s consisting of lowercase English letters. Lesha immediately developed an unique algorithm for this string and shared it with you. The algorithm ...
instruction
0
41,460
0
82,920
Yes
output
1
41,460
0
82,921
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Some time ago Lesha found an entertaining string s consisting of lowercase English letters. Lesha immediately developed an unique algorithm for this string and shared it with you. The algorithm ...
instruction
0
41,461
0
82,922
No
output
1
41,461
0
82,923
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Some time ago Lesha found an entertaining string s consisting of lowercase English letters. Lesha immediately developed an unique algorithm for this string and shared it with you. The algorithm ...
instruction
0
41,462
0
82,924
No
output
1
41,462
0
82,925
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Some time ago Lesha found an entertaining string s consisting of lowercase English letters. Lesha immediately developed an unique algorithm for this string and shared it with you. The algorithm ...
instruction
0
41,463
0
82,926
No
output
1
41,463
0
82,927
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Some time ago Lesha found an entertaining string s consisting of lowercase English letters. Lesha immediately developed an unique algorithm for this string and shared it with you. The algorithm ...
instruction
0
41,464
0
82,928
No
output
1
41,464
0
82,929
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You should process m queries over a set D of strings. Each query is one of three kinds: 1. Add a string s to the set D. It is guaranteed that the string s was not added before. 2. Delete a...
instruction
0
41,689
0
83,378
No
output
1
41,689
0
83,379
Provide tags and a correct Python 3 solution for this coding contest problem. Erelong Leha was bored by calculating of the greatest common divisor of two factorials. Therefore he decided to solve some crosswords. It's well known that it is a very interesting occupation though it can be very difficult from time to time...
instruction
0
41,736
0
83,472
Tags: brute force, implementation, strings Correct Solution: ``` lens = input().split() s1 = input() s2 = input() min_count = int(lens[0]) min_answer = list() for start in range(int(lens[1]) - int(lens[0]) + 1): diff = 0 answer = list() for i in range(int(lens[0])): if (s1[i] != s2[start+i]): ...
output
1
41,736
0
83,473
Provide tags and a correct Python 3 solution for this coding contest problem. Erelong Leha was bored by calculating of the greatest common divisor of two factorials. Therefore he decided to solve some crosswords. It's well known that it is a very interesting occupation though it can be very difficult from time to time...
instruction
0
41,737
0
83,474
Tags: brute force, implementation, strings Correct Solution: ``` I = lambda: map(int, input().split()) n, m = I() s, t = input(), input() res = 0 res_details = [] for i in range(m-n+1): #print(t[i:i+n]) eq = 0 detail = [] for j in range(i,i+n): if not (ord(s[j-i]) - ord(t[j])): eq +=...
output
1
41,737
0
83,475
Provide tags and a correct Python 3 solution for this coding contest problem. Erelong Leha was bored by calculating of the greatest common divisor of two factorials. Therefore he decided to solve some crosswords. It's well known that it is a very interesting occupation though it can be very difficult from time to time...
instruction
0
41,738
0
83,476
Tags: brute force, implementation, strings Correct Solution: ``` n, m = map(int, input().split()) a = input() b = input() L = len(a) res1 = [] res2 = 9999999999 for i in range(0, m - n + 1): ia = iter(a) ib = iter(b[i:i + L]) ans1 = [] ans2 = 0 try: j = 1 while True: if next(ia) != next(ib): ans1.append...
output
1
41,738
0
83,477
Provide tags and a correct Python 3 solution for this coding contest problem. Erelong Leha was bored by calculating of the greatest common divisor of two factorials. Therefore he decided to solve some crosswords. It's well known that it is a very interesting occupation though it can be very difficult from time to time...
instruction
0
41,739
0
83,478
Tags: brute force, implementation, strings Correct Solution: ``` I = lambda: list(map(int, input().split())) n, m = I() s = input() t = input() def diff(s, t, tpos): ans = [] for e, [i, j] in enumerate(zip(s, t[tpos:][:len(s)])): if i!='?' and i!=j: ans.append(e + 1) return ans repl = ...
output
1
41,739
0
83,479
Provide tags and a correct Python 3 solution for this coding contest problem. Erelong Leha was bored by calculating of the greatest common divisor of two factorials. Therefore he decided to solve some crosswords. It's well known that it is a very interesting occupation though it can be very difficult from time to time...
instruction
0
41,740
0
83,480
Tags: brute force, implementation, strings Correct Solution: ``` import sys def main(): n,m = map(int,sys.stdin.readline().split()) s = sys.stdin.readline().rstrip() t = sys.stdin.readline().rstrip() r = 10000 res = [] for i in range(m-n+1): p = [] c = 0 for j in r...
output
1
41,740
0
83,481
Provide tags and a correct Python 3 solution for this coding contest problem. Erelong Leha was bored by calculating of the greatest common divisor of two factorials. Therefore he decided to solve some crosswords. It's well known that it is a very interesting occupation though it can be very difficult from time to time...
instruction
0
41,741
0
83,482
Tags: brute force, implementation, strings Correct Solution: ``` n, m = input().split() s = input() t = input() n = int(n) m = int(m) k = n + 1 pos = [] aux = [] for i in range(m - n + 1): x = n aux=[] for j in range(len(s)): if(t[i + j] == s[j]): x -= 1 else: aux.append(str(j+1)) j += ...
output
1
41,741
0
83,483
Provide tags and a correct Python 3 solution for this coding contest problem. Erelong Leha was bored by calculating of the greatest common divisor of two factorials. Therefore he decided to solve some crosswords. It's well known that it is a very interesting occupation though it can be very difficult from time to time...
instruction
0
41,742
0
83,484
Tags: brute force, implementation, strings Correct Solution: ``` n, m = map(int, input().split()) s = input() t = input() ans = [i for i in range(1, n + 1)] for i in range(m - n + 1): pos = [] for j in range(n): if s[j] != t[i + j]: pos.append(j + 1) if len(pos) < len(ans): ans ...
output
1
41,742
0
83,485
Provide tags and a correct Python 3 solution for this coding contest problem. Erelong Leha was bored by calculating of the greatest common divisor of two factorials. Therefore he decided to solve some crosswords. It's well known that it is a very interesting occupation though it can be very difficult from time to time...
instruction
0
41,743
0
83,486
Tags: brute force, implementation, strings Correct Solution: ``` a,b=map(int,input().split()) c=input() d=input() maxi=a ko=[] for i in range(b-a+1): premax=0 po=[] for j in range(a): if c[j]!=d[j+i]: premax+=1 po.append("%s"%(j+1))...
output
1
41,743
0
83,487
Provide tags and a correct Python 3 solution for this coding contest problem. Suppose you are given a string s of length n consisting of lowercase English letters. You need to compress it using the smallest possible number of coins. To compress the string, you have to represent s as a concatenation of several non-emp...
instruction
0
42,157
0
84,314
Tags: dp, strings Correct Solution: ``` n, a, b = map(int, input().split()) s = input() lcp = [[0]*n for _ in ' '*n] for i in range(n-1, -1, -1): for r in range(n-1, -1, -1): if s[i] == s[r]: if i == n - 1 or r == n - 1: lcp[i][r] = 1 else: lcp[i][r] ...
output
1
42,157
0
84,315
Provide tags and a correct Python 3 solution for this coding contest problem. Suppose you are given a string s of length n consisting of lowercase English letters. You need to compress it using the smallest possible number of coins. To compress the string, you have to represent s as a concatenation of several non-emp...
instruction
0
42,158
0
84,316
Tags: dp, strings Correct Solution: ``` import collections # The first line contains three positive integers, separated by spaces: # n, a and b (1≤n,a,b≤5000) — the length of the string, the cost to compress a one-character string # and the cost to compress a string that appeared before. n, a, b = map(int, input().sp...
output
1
42,158
0
84,317
Provide tags and a correct Python 3 solution for this coding contest problem. Suppose you are given a string s of length n consisting of lowercase English letters. You need to compress it using the smallest possible number of coins. To compress the string, you have to represent s as a concatenation of several non-emp...
instruction
0
42,159
0
84,318
Tags: dp, strings Correct Solution: ``` def f(x): z=[0 for i in range(len(x))] l=0 r=0 for i in range(1,len(x)): if i<=r: z[i]=min(z[i-l],r-i+1) while i+z[i]<len(x) and x[z[i]]==x[i+z[i]]: z[i]+=1 if i+z[i]-1>r: l,r=i,i+z[i]-1 return z a=li...
output
1
42,159
0
84,319
Provide tags and a correct Python 3 solution for this coding contest problem. Suppose you are given a string s of length n consisting of lowercase English letters. You need to compress it using the smallest possible number of coins. To compress the string, you have to represent s as a concatenation of several non-emp...
instruction
0
42,160
0
84,320
Tags: dp, strings Correct Solution: ``` import sys sys.setrecursionlimit(10 ** 8) n, a, b = map(int,input().split()) s = input() def calc(j): if (j >= n): return 0 if (dp[j] != -1): return dp[j] dp[j] = a + calc(j + 1) lo = j hi = n farthest = -1 # finding best string to reach from a gi...
output
1
42,160
0
84,321
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Suppose you are given a string s of length n consisting of lowercase English letters. You need to compress it using the smallest possible number of coins. To compress the string, you have to re...
instruction
0
42,161
0
84,322
No
output
1
42,161
0
84,323
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Suppose you are given a string s of length n consisting of lowercase English letters. You need to compress it using the smallest possible number of coins. To compress the string, you have to re...
instruction
0
42,162
0
84,324
No
output
1
42,162
0
84,325
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Suppose you are given a string s of length n consisting of lowercase English letters. You need to compress it using the smallest possible number of coins. To compress the string, you have to re...
instruction
0
42,163
0
84,326
No
output
1
42,163
0
84,327
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Suppose you are given a string s of length n consisting of lowercase English letters. You need to compress it using the smallest possible number of coins. To compress the string, you have to re...
instruction
0
42,164
0
84,328
No
output
1
42,164
0
84,329
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string s such that each its character is either 1, 2, or 3. You have to choose the shortest contiguous substring of s such that it contains each of these three characters at least once. A contiguous substring of string s is ...
instruction
0
42,237
0
84,474
Tags: binary search, dp, implementation, two pointers Correct Solution: ``` t=int(input()) while t: t=t-1 s=input() se=set(s) if len(se)<3: print(0) continue a1=-1 a2=-1 a3=-1 out=len(s) for i in range(len(s)): if s[i]=='1': a1=i ...
output
1
42,237
0
84,475
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string s such that each its character is either 1, 2, or 3. You have to choose the shortest contiguous substring of s such that it contains each of these three characters at least once. A contiguous substring of string s is ...
instruction
0
42,238
0
84,476
Tags: binary search, dp, implementation, two pointers Correct Solution: ``` t = int(input()) for i1 in range(t): s = [int(i) for i in input()] pointer = [0, 0] advance = 1 result = len(s) + 1 if len(set(s)) < 3: print(0) continue c = [0, 0, 0, 0] c[s[0]] += 1 while True: ...
output
1
42,238
0
84,477
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string s such that each its character is either 1, 2, or 3. You have to choose the shortest contiguous substring of s such that it contains each of these three characters at least once. A contiguous substring of string s is ...
instruction
0
42,239
0
84,478
Tags: binary search, dp, implementation, two pointers Correct Solution: ``` tes=int(input()) def check(arr): for i in arr: if i<=0: return False return True for q in range(tes): a=input() s={'1':0,'2':0,'3':0} left=right=0 for c,i in enumerate(a): s[i]+=1 if 0 not in s.values(): right=c break if ...
output
1
42,239
0
84,479
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string s such that each its character is either 1, 2, or 3. You have to choose the shortest contiguous substring of s such that it contains each of these three characters at least once. A contiguous substring of string s is ...
instruction
0
42,240
0
84,480
Tags: binary search, dp, implementation, two pointers Correct Solution: ``` import math as m t=int(input()) for _ in range(t): a=input() n=len(a) b=[] i=-1 j=-1 k=-1 for l in range(n): if a[l]=="1": i=l elif a[l]=="2": j=l elif a[l]=="3": ...
output
1
42,240
0
84,481
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string s such that each its character is either 1, 2, or 3. You have to choose the shortest contiguous substring of s such that it contains each of these three characters at least once. A contiguous substring of string s is ...
instruction
0
42,241
0
84,482
Tags: binary search, dp, implementation, two pointers Correct Solution: ``` T = int(input()) def findMin(s): k = 3 n = len(s) st = 0 end = 0 cnt = {'1':0, '2':0, '3': 0} di = 0 currlen =0 minlen = n startInd = -1 while (end < n): cnt[s[end]] += 1 if (c...
output
1
42,241
0
84,483
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string s such that each its character is either 1, 2, or 3. You have to choose the shortest contiguous substring of s such that it contains each of these three characters at least once. A contiguous substring of string s is ...
instruction
0
42,242
0
84,484
Tags: binary search, dp, implementation, two pointers Correct Solution: ``` def find(arr, ind): s = 0 e = len(arr)-1 ans = -1 while s <= e: # print(s, e) mid = (s+e)//2 if arr[mid] > ind: ans = arr[mid] e = mid-1 else: s = mid+1 return ans t = int(input()) for _ in range(t): s = input() a, b, c...
output
1
42,242
0
84,485
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string s such that each its character is either 1, 2, or 3. You have to choose the shortest contiguous substring of s such that it contains each of these three characters at least once. A contiguous substring of string s is ...
instruction
0
42,243
0
84,486
Tags: binary search, dp, implementation, two pointers Correct Solution: ``` t=int(input()) for i in range(t): s=input() a=-1 b=-1 c=-1 ans=len(s) cur=[] if s.count('1')==0 or s.count('2')==0 or s.count('3')==0: print(0) else: for i in range(len(s)): if s[...
output
1
42,243
0
84,487
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string s such that each its character is either 1, 2, or 3. You have to choose the shortest contiguous substring of s such that it contains each of these three characters at least once. A contiguous substring of string s is ...
instruction
0
42,244
0
84,488
Tags: binary search, dp, implementation, two pointers Correct Solution: ``` from sys import stdin,stdout from collections import Counter from itertools import permutations import bisect import math I=lambda: map(int,stdin.readline().split()) I1=lambda: stdin.readline() #(a/b)%m =((a%m)*pow(b,m-2)%m)%m for _ in range(...
output
1
42,244
0
84,489
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string s such that each its character is either 1, 2, or 3. You have to choose the shortest contiguous substring of s such that it contains each of these three characters at leas...
instruction
0
42,245
0
84,490
Yes
output
1
42,245
0
84,491
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string s such that each its character is either 1, 2, or 3. You have to choose the shortest contiguous substring of s such that it contains each of these three characters at leas...
instruction
0
42,246
0
84,492
Yes
output
1
42,246
0
84,493
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string s such that each its character is either 1, 2, or 3. You have to choose the shortest contiguous substring of s such that it contains each of these three characters at leas...
instruction
0
42,247
0
84,494
Yes
output
1
42,247
0
84,495
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string s such that each its character is either 1, 2, or 3. You have to choose the shortest contiguous substring of s such that it contains each of these three characters at leas...
instruction
0
42,248
0
84,496
Yes
output
1
42,248
0
84,497
Evaluate the correctness of the submitted Python 2 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string s such that each its character is either 1, 2, or 3. You have to choose the shortest contiguous substring of s such that it contains each of these three characters at leas...
instruction
0
42,249
0
84,498
Yes
output
1
42,249
0
84,499
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string s such that each its character is either 1, 2, or 3. You have to choose the shortest contiguous substring of s such that it contains each of these three characters at leas...
instruction
0
42,250
0
84,500
No
output
1
42,250
0
84,501
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string s such that each its character is either 1, 2, or 3. You have to choose the shortest contiguous substring of s such that it contains each of these three characters at leas...
instruction
0
42,251
0
84,502
No
output
1
42,251
0
84,503
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string s such that each its character is either 1, 2, or 3. You have to choose the shortest contiguous substring of s such that it contains each of these three characters at leas...
instruction
0
42,252
0
84,504
No
output
1
42,252
0
84,505
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string s such that each its character is either 1, 2, or 3. You have to choose the shortest contiguous substring of s such that it contains each of these three characters at leas...
instruction
0
42,253
0
84,506
No
output
1
42,253
0
84,507
Provide tags and a correct Python 3 solution for this coding contest problem. You are given n strings s_1, s_2, …, s_n consisting of lowercase Latin letters. In one operation you can remove a character from a string s_i and insert it to an arbitrary position in a string s_j (j may be equal to i). You may perform this...
instruction
0
42,261
0
84,522
Tags: greedy, strings Correct Solution: ``` t = int(input()) for _ in range(t): n = int(input()) lst = [] for i in range(n): lst.append(input()) cnt = [0 for i in range(27)] # print(lst) for i in range(len(lst)): s1 = lst[i] for j in range(len(s1)): #...
output
1
42,261
0
84,523
Provide tags and a correct Python 3 solution for this coding contest problem. You are given n strings s_1, s_2, …, s_n consisting of lowercase Latin letters. In one operation you can remove a character from a string s_i and insert it to an arbitrary position in a string s_j (j may be equal to i). You may perform this...
instruction
0
42,262
0
84,524
Tags: greedy, strings Correct Solution: ``` import sys input = sys.stdin.readline t = int(input()) for tt in range(t): n = int(input()) count = [0 for i in range(1000)] for i in range(n): s = input() for i in range(len(s)): count[ord(s[i])] += 1 flag = True for i in rang...
output
1
42,262
0
84,525
Provide tags and a correct Python 3 solution for this coding contest problem. You are given n strings s_1, s_2, …, s_n consisting of lowercase Latin letters. In one operation you can remove a character from a string s_i and insert it to an arbitrary position in a string s_j (j may be equal to i). You may perform this...
instruction
0
42,263
0
84,526
Tags: greedy, strings Correct Solution: ``` n = int(input()) def helper(m): arr = [0] * 26 for i in range(m): my_str = input() for tmp in my_str: arr[ord(tmp) - 97] += 1 for i in range(26): if (arr[i] % m != 0): return "NO" return "YES" for _ in ran...
output
1
42,263
0
84,527
Provide tags and a correct Python 3 solution for this coding contest problem. You are given n strings s_1, s_2, …, s_n consisting of lowercase Latin letters. In one operation you can remove a character from a string s_i and insert it to an arbitrary position in a string s_j (j may be equal to i). You may perform this...
instruction
0
42,264
0
84,528
Tags: greedy, strings Correct Solution: ``` for _ in range(int(input())): n = int(input()) dic = {} for sentence in range(n): s = list(input()) for i in s: if i not in dic: dic[i] = 0 dic[i] += 1 flag = True for i in dic: if dic[i]%n !=...
output
1
42,264
0
84,529
Provide tags and a correct Python 3 solution for this coding contest problem. You are given n strings s_1, s_2, …, s_n consisting of lowercase Latin letters. In one operation you can remove a character from a string s_i and insert it to an arbitrary position in a string s_j (j may be equal to i). You may perform this...
instruction
0
42,265
0
84,530
Tags: greedy, strings Correct Solution: ``` import sys import math from collections import Counter,defaultdict LI=lambda:list(map(int,input().split())) MAP=lambda:map(int,input().split()) IN=lambda:int(input()) S=lambda:input() def case(): n = IN() d = {} for i in range(n): s=S() for i in ...
output
1
42,265
0
84,531
Provide tags and a correct Python 3 solution for this coding contest problem. You are given n strings s_1, s_2, …, s_n consisting of lowercase Latin letters. In one operation you can remove a character from a string s_i and insert it to an arbitrary position in a string s_j (j may be equal to i). You may perform this...
instruction
0
42,266
0
84,532
Tags: greedy, strings Correct Solution: ``` for t in range(int(input())): a=int(input()) d={} for i in range(a): s1=input() for j in s1: if j not in d: d[j]=1 else: d[j]+=1 flag=0 for i in d.values(): if i%a>0: ...
output
1
42,266
0
84,533