foo.cc:5:6: error: stray '\357' in program
    5 | int a，sum=0;
      |      ^
foo.cc:5:7: error: stray '\274' in program
    5 | int a，sum=0;
      |       ^
foo.cc:5:8: error: stray '\214' in program
    5 | int a，sum=0;
      |        ^
foo.cc:7:4: error: stray '\357' in program
    7 | for（int i=1;i<=a;i++）
      |    ^
foo.cc:7:5: error: stray '\274' in program
    7 | for（int i=1;i<=a;i++）
      |     ^
foo.cc:7:6: error: stray '\210' in program
    7 | for（int i=1;i<=a;i++）
      |      ^
foo.cc:7:23: error: stray '\357' in program
    7 | for（int i=1;i<=a;i++）
      |                       ^
foo.cc:7:24: error: stray '\274' in program
    7 | for（int i=1;i<=a;i++）
      |                        ^
foo.cc:7:25: error: stray '\211' in program
    7 | for（int i=1;i<=a;i++）
      |                         ^
foo.cc: In function 'int main()':
foo.cc:5:9: error: expected initializer before 'sum'
    5 | int a，sum=0;
      |         ^~~
foo.cc:6:6: error: 'a' was not declared in this scope
    6 | cin>>a;
      |      ^
foo.cc:7:7: error: expected '(' before 'int'
    7 | for（int i=1;i<=a;i++）
      |       ^~~
      |       (
foo.cc:7:23: error: expected ')' before '{' token
    7 | for（int i=1;i<=a;i++）
      |       ~~~             ^
      |                       )
    8 | {
      | ~                      
foo.cc:9:4: error: 'sum' was not declared in this scope
    9 |    sum+=i;
      |    ^~~
foo.cc:11:7: error: 'sum' was not declared in this scope
   11 | cout<<sum<<endl;
      |       ^~~

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