foo.c:1:1: warning: data definition has no type or storage class
    1 | a=input(）
      | ^
foo.c:1:1: warning: type defaults to 'int' in declaration of 'a' [-Wimplicit-int]
foo.c:1:3: warning: implicit declaration of function 'input' [-Wimplicit-function-declaration]
    1 | a=input(）
      |   ^~~~~
foo.c:1:9: error: '\U0000ff09' undeclared here (not in a function)
    1 | a=input(）
      |         ^~
foo.c:1:11: error: expected ')' before 'a'
    1 | a=input(）
      |        ~  ^
      |           )
    2 | a=int(a)
      | ~          

[Hydro](https://hydro.ac)提供评测服务