#4 4
#3 3
#6 6
#7 7
#9 9
#12 12
#10 10
#16 16
#13 13
#19 19
#8 8
#17 17
#15 15
#14 14
#18 18
#23 23
#20 20
#21 21
#24 24
#22 22
#11 11
#5 5
#1 1
#2 2