Use of uninitialized value in subtraction (-) at Creating_table_ZZI_Paul.pl line
 1210.
Use of uninitialized value in subtraction (-) at Creating_table_ZZI_Paul.pl line
 1210.
Use of uninitialized value in multiplication (*) at Creating_table_ZZI_Paul.pl l
ine 1211.
Use of uninitialized value in addition (+) at Creating_table_ZZI_Paul.pl line 12
16.
Use of uninitialized value in subtraction (-) at Creating_table_ZZI_Paul.pl line
 1217.
Use of uninitialized value in subtraction (-) at Creating_table_ZZI_Paul.pl line
 1217.
Invalid n: 0