1 3 2 XXXXXXX 3 X * X 4 XXXXXXX 5 6 __________ 7 8 XXXXXXXXXX 9 XXXX XX 10 X X 11 X X XXXXXXX 12 XXXXXXXX XX 13 X X XXXXXXX 14 X X 15 XXXX *XX 16 XXXXXXXXXX 17 18 __________ 19 20 XXXXXXXXXX 21 * XXXX XX 22 X X 23 X X XXXXXXX 24 XXXXXXXX XX 25 X X XXXXXXX 26 X X 27 XXXX XX 28 XXXXXXXXXX 29 30 __________ 31 32