func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     int n, m;     cin >> n >> m;     int floor[n][2 * m];     for (int i = 0; i < n; i++) {       for (int j = 0; j < 2 * m; j++) {         cin >> floor[i][j];       }     }     int count = 0;     for (int i = 0; i < n; i++) {       for (int j = 0; j < 2 * m - 1; j += 2) {         if (floor[i][j] == 1 || floor[i][j + 1] == 1) {           count++;         }       }     }     cout << count <<   n ;   }   