func_code_string: #include <bits/stdc++.h>   using namespace std;   const int maxn = 7 + 5;   int n, a[maxn];   char str[maxn];   int main() {     cin >> n;     int ans = 0;     while (n--) {       cin >> str;       for (int i = 0; i < 7; i++) {         a[i] += str[i] -  0 ;         ans = max(ans, a[i]);       }     }     cout << ans << endl;   }   