C:\grappa>grappa1-0.pl
Use of uninitialized value in print at C:\grappa\grappa1-0.pl line 49.
Use of uninitialized value in print at C:\grappa\grappa1-0.pl line 49.
Use of uninitialized value in print at C:\grappa\grappa1-0.pl line 49.
Use of uninitialized value in print at C:\grappa\grappa1-0.pl line 49.
Use of uninitialized value in print at C:\grappa\grappa1-0.pl line 49.
Use of uninitialized value in print at C:\grappa\grappa1-0.pl line 49.
Use of uninitialized value in print at C:\grappa\grappa1-0.pl line 49.
Use of uninitialized value in print at C:\grappa\grappa1-0.pl line 49.
Use of uninitialized value in print at C:\grappa\grappa1-0.pl line 49.
Use of uninitialized value in print at C:\grappa\grappa1-0.pl line 49.