foo.cc:5:14: error: stray '\357' in program
     int sum=0，x;
              ^
foo.cc:5:15: error: stray '\274' in program
     int sum=0，x;
               ^
foo.cc:5:16: error: stray '\214' in program
     int sum=0，x;
                ^
foo.cc: In function 'int main()':
foo.cc:5:17: error: expected ',' or ';' before 'x'
     int sum=0，x;
                 ^
foo.cc:8:9: error: 'x' was not declared in this scope
     for(x)
         ^
foo.cc:13:5: error: expected primary-expression before 'return'
     return 0;
     ^~~~~~
foo.cc:13:5: error: expected ')' before 'return'

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