[1,2,3,3,4,5,5,4,5,6,7,6,5,7,8,7,7,8,7,11,9,10,11, 10,13,9,11,10,11,13,12,9,11,13,13,11,9,12,13,11, 14,10,11,15,9,14,16,17,7,8,19,11,12,13,14,15,18]