Use of uninitialized value in subtraction (-) at line 117, <$IN2> line 4148567.
Use of uninitialized value in numeric gt (>) at line 118, <$IN2> line 4148567.
Use of uninitialized value $F2[2] in hash element at line 119, <$IN2> line 4148567.
Argument "" isn't numeric in sort at line 127, <$IN2> line 4148567.