View Compilation Error

0_0_22881147_10274.cpp:2:9: error: #include expects "FILENAME" or <FILENAME>
 #include<iostream>
         ^
0_0_22881147_10274.cpp: In function 'int main()':
0_0_22881147_10274.cpp:7:8: error: 'cin' was not declared in this scope
  while(cin>>a>>b) cout<<a+b<<endl;
        ^
0_0_22881147_10274.cpp:7:12: error: 'gt' was not declared in this scope
  while(cin>>a>>b) cout<<a+b<<endl;
            ^
0_0_22881147_10274.cpp:7:14: error: expected ')' before ';' token
  while(cin>>a>>b) cout<<a+b<<endl;
              ^
0_0_22881147_10274.cpp:7:16: error: 'gt' was not declared in this scope
  while(cin>>a>>b) cout<<a+b<<endl;
                ^
0_0_22881147_10274.cpp:7:29: error: expected ';' before ')' token
  while(cin>>a>>b) cout<<a+b<<endl;
                             ^
0_0_22881147_10274.cpp:7:40: error: 'lt' was not declared in this scope
  while(cin>>a>>b) cout<<a+b<<endl;
                                        ^
0_0_22881147_10274.cpp:7:54: error: 'endl' was not declared in this scope
  while(cin>>a>>b) cout<<a+b<<endl;
                                                      ^