View Compilation Error

0_0_28337742_9370.cpp: In function 'int main()':
0_0_28337742_9370.cpp:8:2: error: expected ';' before 'while'
  while(cin>>sum){
  ^
0_0_28337742_9370.cpp:21:1: error: expected '}' at end of input
 }
 ^