18,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8 21,1,8,1,1,8,1,1,8,1,1,8,1,1,8,1,1,8,1,1,8,1,1,8,1,1,8 3