View Compilation Error

0_0_23370309_31810.cpp:7:1: error: stray '\243' in program
 while(scanf("%d %d",&a,&b)!=EOF）printf("%d\n",a+b);
 ^
0_0_23370309_31810.cpp:7:1: error: stray '\251' in program
0_0_23370309_31810.cpp: In function 'int main()':
0_0_23370309_31810.cpp:7:34: error: expected ')' before 'printf'
 while(scanf("%d %d",&a,&b)!=EOF）printf("%d\n",a+b);
                                  ^