/in/foo.c:1:1: warning: data definition has no type or storage class
    1 | h1=input("")
      | ^~
/in/foo.c:1:1: warning: type defaults to 'int' in declaration of 'h1' [-Wimplicit-int]
/in/foo.c:1:4: warning: implicit declaration of function 'input' [-Wimplicit-function-declaration]
    1 | h1=input("")
      |    ^~~~~
/in/foo.c:1:4: error: initializer element is not constant
/in/foo.c:2:1: error: expected ',' or ';' before 'h'
    2 | h=list(h1)
      | ^