View Compilation Error

0_0_39584403_2599.cpp: In function 'int main()':
0_0_39584403_2599.cpp:12:10: error: expected '}' at end of input
   12 |         }
      |          ^
0_0_39584403_2599.cpp:9:27: note: to match this '{'
    9 |     while (cin >> m >> n) {
      |                           ^
0_0_39584403_2599.cpp:12:10: error: expected '}' at end of input
   12 |         }
      |          ^
0_0_39584403_2599.cpp:7:12: note: to match this '{'
    7 | int main() {
      |            ^