func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, m;     for (; ~scanf( %d%d , &n, &m);) {       if (n == 1) {         if (m == 1)           puts( 0 );         else {           for (int i = 1; i <= m; ++i) printf( %d  , i + 1);           puts(  );         }       } else {         if (m == 1)           for (int i = 1; i <= n; ++i) printf( %d n , i + 1);         else           for (int i = 1; i <= n; ++i) {             for (int j = 1; j <= m; ++j) printf( %d  , i * (j + n));             puts(  );           }       }     }     return 0;   }   