View Compilation Error

0_0_15088948_15024.cpp: In function 'int main()':
0_0_15088948_15024.cpp:15:6: error: 'm1' was not declared in this scope
 cin>>m1>>m2;
      ^
0_0_15088948_15024.cpp:15:10: error: 'm2' was not declared in this scope
 cin>>m1>>m2;
          ^