View Compilation Error

0_0_39853669_29256.cpp: In function 'int main()':
0_0_39853669_29256.cpp:4:1: error: 'cin' was not declared in this scope
    4 | cin>>a>>b;
      | ^~~
0_0_39853669_29256.cpp:6:1: error: 'cout' was not declared in this scope
    6 | cout<<c<<endl;
      | ^~~~
0_0_39853669_29256.cpp:6:10: error: 'endl' was not declared in this scope
    6 | cout<<c<<endl;
      |          ^~~~