return [[ 0, 0, 0, 0 ], [ 0, 3, 0, 0 ], [ 0, 6, 0, 0 ], [ 11, 0, 0, 0 ], [ 11, 3, 0, 0 ], [ 11, 6, 0, 0 ], [ 22, 0, 0, 0 ], [ 22, 3, 0, 0 ], [ 22, 6, 0, 0 ]];;