[1,2,3,4,5,3,4,5,6,7,8,6,7,8,9,10,11,9,10,11,12, 13,14,12,13,14,15,16,17,15,16,17,18,19,20,9,10,11, 12,13,14,12,13,14,15,16,17,15,16,17,18,19,20,18, 19,20,21,22,23,21,22,23,24,25,26,24,25,26,27,28, 29,18]