/in/foo.c:1:1: warning: data definition has no type or storage class
    1 | repayment_amount = int(input())
      | ^~~~~~~~~~~~~~~~
/in/foo.c:1:1: warning: type defaults to 'int' in declaration of 'repayment_amount' [-Wimplicit-int]
/in/foo.c:1:20: error: expected expression before 'int'
    1 | repayment_amount = int(input())
      |                    ^~~