View Compilation Error

0_0_35065864_23386.cpp: In function 'int main()':
0_0_35065864_23386.cpp:14:13: error: 'cout' was not declared in this scope
             cout<<endl;
             ^
0_0_35065864_23386.cpp:14:19: error: 'endl' was not declared in this scope
             cout<<endl;
                   ^
0_0_35065864_23386.cpp:31:13: error: 'cout' was not declared in this scope
             cout<<endl;
             ^
0_0_35065864_23386.cpp:31:19: error: 'endl' was not declared in this scope
             cout<<endl;
                   ^