foo.c:1:1: warning: data definition has no type or storage class
    1 | a=int（input（））
      | ^
foo.c:1:1: warning: type defaults to 'int' in declaration of 'a' [-Wimplicit-int]
foo.c:1:3: error: 'int\U0000ff08input\U0000ff08\U0000ff09\U0000ff09' undeclared here (not in a function)
    1 | a=int（input（））
      |   ^~~~~~~~~~~~~~~~
foo.c:2:1: error: expected ',' or ';' before 'b'
    2 | b=int（input（））
      | ^

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