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my @rows = ( [ qw(71 22 15 10 51) ], ... [ qw(81 32 53 54 42) ], );
my @row1 = qw(71 22 15 10 51); my @row2 = qw(91 82 28 11 91); ... my @rows = ( \@row1, \@row2, \@row3, \@row4, \@row5 );