foo.c:1:1: error: return type defaults to ‘int’ [-Wimplicit-int]
    1 | print(int(input))**2)
      | ^~~~~
foo.c: In function ‘print’:
foo.c:1:18: error: expected declaration specifiers before ‘*’ token
    1 | print(int(input))**2)
      |                  ^
foo.c:2: warning: control reaches end of non-void function [-Wreturn-type]