func_code_string: #include <bits/stdc++.h>   using namespace std;   int ar[10000];   int main() {     int n, m, i, j, x = 0;     cin >> n >> m;     char a[n][2 * m];     for (i = 0; i < n; i++) {       for (j = 0; j < 2 * m; j++) cin >> a[i][j];     }     for (i = 0; i < n; i++) {       for (j = 0; j < 2 * m; j = j + 2) {         if (a[i][j] ==  1  || a[i][j + 1] ==  1 ) x++;       }     }     cout << x << endl;   }   