func_code_string: #include <bits/stdc++.h>   int main() {     int n, m;     int left, right;     int i;     int count = 0;     scanf( %d %d , &n, &m);     while (n--) {       for (i = 0; i < m; i++) {         scanf( %d %d , &left, &right);         if (left == 1 || right == 1) {           count++;         }       }     }     printf( %d n , count);     return 0;   }   