View Compilation Error

0_0_31850550_20355.cpp:3:1: error: stray '\243' in program
 {int a，n;
 ^
0_0_31850550_20355.cpp:3:1: error: stray '\254' in program
0_0_31850550_20355.cpp: In function 'int main()':
0_0_31850550_20355.cpp:3:9: error: expected initializer before 'n'
 {int a，n;
         ^
0_0_31850550_20355.cpp:4:23: error: 'a' was not declared in this scope
     while(scanf("%d",&a)!=EOF)
                       ^
0_0_31850550_20355.cpp:5:12: error: 'n' was not declared in this scope
     {      n=1;
            ^