my %lookup = ( 1, [ 2, 0, 9 ], 3, [ 5, 1, 10 ], 5, [ 8, 0, 11 ], 7, [ 11, 1, 12 ], 10,[ 15, 0, 5 ], 12,[ 18, 1, 6 ], 14,[ 21, 0, 7 ], 16,[ 24, 1, 8 ], ); my( $j, $p, $v ) = @{ $lookup{ $h } };