This is perl, v5.6.1 built for i386-linux

[/d]$ perl test.pl
1, 56, 2, 0
4, 56, 5, 0
7, 56, 8, 0
[/d]$ perl test.pl
1, 56, 2, 0
4, 56, 5, 0
7, 56, 8, 0