View Compilation Error

0_0_16860064_27132.cpp:7:1: error: stray '\243' in program
 while(cin >> a >> b） {
 ^
0_0_16860064_27132.cpp:7:1: error: stray '\251' in program
0_0_16860064_27132.cpp: In function 'int main()':
0_0_16860064_27132.cpp:7:23: error: expected ')' before '{' token
 while(cin >> a >> b） {
                       ^