func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     int n, d;     cin >> n >> d;     string s;     int cnt, last = 0;     int ans = 0;     for (int i = 0; i < d; i++) {       cin >> s;       cnt = 0;       for (int j = 0; j < n; j++) cnt += (s[j] -  0 );       if (cnt == n) {         ans = max(ans, i - last);         last = i + 1;       }     }     ans = max(ans, d - last);     cout << ans;     return 0;   }   