[1,2,2,3,2,3,4,2,3,4,3,4,4,3,5,2,3,4,5,3,3,3,4,5,4,4,5,5,3,4,5,6,3,3,4,5,5,4,6,4,4,5,5,6,5,5,6,5,6,7,2,3,4,5,6,5,6,6,5,6,7,3,3,4,5,6,6,5,7,3,4,4,5,5,7,4,3,5,6,4,6,4,5,6,7,5,5]