Argument "w60" isn't numeric in numeric comparison (<=>) at hhh.pl line 11.
Argument "w61" isn't numeric in numeric comparison (<=>) at hhh.pl line 11.
Argument "w60" isn't numeric in numeric comparison (<=>) at hhh.pl line 11.
Argument "w61" isn't numeric in numeric comparison (<=>) at hhh.pl line 11.