80
DDDDDUUUDDUDUUDUDDUUDDUDUUUUDDDUUDDDDUDUDDUDUDDDUUDUDUDUUUUDDDDDUDUUDUUUDUDDDUDU
LLLLLRLRRLLLRLRLRLLLLLLRRRRLRLLLLLLRLLLRLLLRLRRRRRRRLRRRLLRLLLLLLLRLLRLLLLRLRRL
49 14 8 29 9 25 34 20 44 10 4 24 38 2 28 11 30 19 40 26 42 48 7 18 22 1 47 23 49 33 31 6 36 13 37 17 35 15 27 45 5 46 32 16 43 21 39 12 41 3
0
