View Compilation Error

0_0_26065667_7239.cpp:5:1: error: stray '\243' in program
 while(scanf("%d%d",&a,&b)&&a&&b）
 ^
0_0_26065667_7239.cpp:5:1: error: stray '\251' in program
0_0_26065667_7239.cpp: In function 'int main()':
0_0_26065667_7239.cpp:6:1: error: expected ')' before '{' token
 {
 ^
0_0_26065667_7239.cpp:7:7: error: 'n' was not declared in this scope
 while(n--)
       ^