View Compilation Error

0_0_16527331_30203.c: In function 'main':
0_0_16527331_30203.c:5:1: error: stray '\243' in program
 while（scanf("%d%d",&a,&b)==2）
 ^
0_0_16527331_30203.c:5:1: error: stray '\250' in program
0_0_16527331_30203.c:5:8: error: expected '(' before 'scanf'
 while（scanf("%d%d",&a,&b)==2）
        ^
0_0_16527331_30203.c:5:8: error: stray '\243' in program
0_0_16527331_30203.c:5:8: error: stray '\251' in program