/in/foo.cc:7:6: error: stray '\357' in program
    if（a>250&&b>250）cout<<0;
      ^
/in/foo.cc:7:7: error: stray '\274' in program
    if（a>250&&b>250）cout<<0;
       ^
/in/foo.cc:7:8: error: stray '\210' in program
    if（a>250&&b>250）cout<<0;
        ^
/in/foo.cc:7:21: error: stray '\357' in program
    if（a>250&&b>250）cout<<0;
                     ^
/in/foo.cc:7:22: error: stray '\274' in program
    if（a>250&&b>250）cout<<0;
                      ^
/in/foo.cc:7:23: error: stray '\211' in program
    if（a>250&&b>250）cout<<0;
                       ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:7:9: error: expected '(' before 'a'
    if（a>250&&b>250）cout<<0;
         ^
/in/foo.cc:8:4: error: 'else' without a previous 'if'
    else
    ^~~~