View Compilation Error

0_0_39307023_14703.cpp: In function 'int main()':
0_0_39307023_14703.cpp:21:9: error: '_int32' was not declared in this scope
   21 |         _int32 m;
      |         ^~~~~~
0_0_39307023_14703.cpp:22:21: error: 'm' was not declared in this scope
   22 |         std::cin >> m;
      |                     ^