View Compilation Error

0_0_17101332_10613.cpp:4:10: error: stray '#' in program
 usercode:#include <iostream>
          ^
0_0_17101332_10613.cpp:1:1: error: 'check' does not name a type
 check:0
 ^
0_0_17101332_10613.cpp: In function 'int main()':
0_0_17101332_10613.cpp:10:9: error: 'cin' was not declared in this scope
   while(cin >> a >> b) {
         ^
0_0_17101332_10613.cpp:11:5: error: 'cout' was not declared in this scope
     cout << a + b << endl;
     ^
0_0_17101332_10613.cpp:11:22: error: 'endl' was not declared in this scope
     cout << a + b << endl;
                      ^