/in/foo.c:1:1: warning: data definition has no type or storage class
 a = int(input())
 ^
/in/foo.c:1:1: warning: type defaults to 'int' in declaration of 'a' [-Wimplicit-int]
/in/foo.c:1:5: error: expected expression before 'int'
 a = int(input())
     ^~~
/in/foo.c:3:6: error: stray '\357' in program
 print（b）
      ^
/in/foo.c:3:7: error: stray '\274' in program
 print（b）
       ^
/in/foo.c:3:8: error: stray '\210' in program
 print（b）
        ^
/in/foo.c:3:10: error: stray '\357' in program
 print（b）
          ^
/in/foo.c:3:11: error: stray '\274' in program
 print（b）
           ^
/in/foo.c:3:12: error: stray '\211' in program
 print（b）
            ^