foo.cc:18:18: error: stray '\357' in program
  printf("%d\n",f)；
                  ^
foo.cc:18:19: error: stray '\274' in program
  printf("%d\n",f)；
                   ^
foo.cc:18:20: error: stray '\233' in program
  printf("%d\n",f)；
                    ^
foo.cc: In function 'int main()':
foo.cc:19:2: error: expected ';' before 'return'
  return 0; 
  ^~~~~~
foo.cc:8:12: warning: unused variable 'd' [-Wunused-variable]
  int a,b,c,d,e,f,i;
            ^

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