View Compilation Error

0_0_38174688_16736.cpp: In function 'int main()':
0_0_38174688_16736.cpp:23:21: error: expected ')' before ';' token
  while(cin >> n >> m;){
                     ^
0_0_38174688_16736.cpp:23:22: error: expected primary-expression before ')' token
  while(cin >> n >> m;){
                      ^