View Compilation Error

0_0_38643661_6717.cpp:5:6: error: stray '\243' in program
 int n，sum;
      ^
0_0_38643661_6717.cpp:5:7: error: stray '\254' in program
 int n，sum;
       ^
0_0_38643661_6717.cpp: In function 'int main()':
0_0_38643661_6717.cpp:5:8: error: expected initializer before 'sum'
 int n，sum;
        ^~~
0_0_38643661_6717.cpp:6:1: error: 'sum' was not declared in this scope
 sum=0
 ^~~
0_0_38643661_6717.cpp:8:16: error: 'n' was not declared in this scope
 for(int i=1;i<=n;i++)
                ^