[2,2,2,2,5,2,5,2,5,7,2,5,7,2,5,7,2,5,7,10,2,5,7, 10,2,5,7,10,2,5,7,10,13,2,5,7,10,13,2,5,7,10,13, 15,2,5,7,10,13,15,2,5,7,10,13,15,2,5,7,10,13,15, 18,2,5,7,10,13,15,18,2,5,7,10,13,15,18,20]