#15 15
#12 12
#19 19
#22 22
#16 16
#24 24
#17 17
#20 20
#4 4
#8 8
#13 13
#23 23
#18 18
#27 27
#11 11
#14 14
#25 25
#28 28
#26 26
#21 21
#10 10
#6 6
#1 1
#2 2
#3 3
#5 5
#7 7
#9 9