View Compilation Error

0_0_34678737_12399.cpp:1:10: error: #include expects "FILENAME" or <FILENAME>
 #include <iostream>
          ^
0_0_34678737_12399.cpp: In function 'int main()':
0_0_34678737_12399.cpp:7:11: error: 'cin' was not declared in this scope
     while(cin>>a>>b)
           ^
0_0_34678737_12399.cpp:7:15: error: 'gt' was not declared in this scope
     while(cin>>a>>b)
               ^
0_0_34678737_12399.cpp:7:17: error: expected ')' before ';' token
     while(cin>>a>>b)
                 ^
0_0_34678737_12399.cpp:7:19: error: 'gt' was not declared in this scope
     while(cin>>a>>b)
                   ^
0_0_34678737_12399.cpp:7:32: error: expected ';' before ')' token
     while(cin>>a>>b)
                                ^