View Compilation Error

0_0_30637384_6518.cpp:1:1: error: 'include' does not name a type
 include <iostream>
 ^
0_0_30637384_6518.cpp: In function 'int main()':
0_0_30637384_6518.cpp:7:8: error: 'cin' was not declared in this scope
  while(cin>>m>>n)
        ^
0_0_30637384_6518.cpp:19:16: error: 'cout' was not declared in this scope
   if(sum1>sum2)cout<<sum1;
                ^
0_0_30637384_6518.cpp:20:8: error: 'cout' was not declared in this scope
   else cout<<sum2;
        ^