0 1 1 1 0 2 2 1 0 0 0 0 0 1 1 1 0 2 2 1 0 0 0 0 0 1 1 1 0 2 2 1 0 0 0 0 0 3 1 0 4 1 0 3 1 0 4 1 0 3 1 0 4 1 [ 2, 3, 4, 3, 4 ] [ 2, 3, 4, 3, 4 ] [ 2, 3, 4, 3, 4 ] [ 2, 3, 4, 3, 4 ] 1 1 0 0 1