foo.c:1:1: warning: data definition has no type or storage class
    1 | num = int(input())
      | ^~~
foo.c:1:1: warning: type defaults to 'int' in declaration of 'num' [-Wimplicit-int]
foo.c:1:7: error: expected expression before 'int'
    1 | num = int(input())
      |       ^~~
foo.c:6:22: error: stray '\357' in program
    6 |            print("no"）
      |                      ^
foo.c:6:23: error: stray '\274' in program
    6 |            print("no"）
      |                       ^
foo.c:6:24: error: stray '\211' in program
    6 |            print("no"）
      |                        ^

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