90
UUUUUDDDUDDUUUUUDUUDUDUUDUUDUDDUDDUDDUUDDDDDDDUUDUUUDUUUDUDDDUDUUDDDDUUUDDUDUUDUUDUDUUUDUD
LRLRRLLLRLLRLLLLRLLLLLLLLLLLRLRRRRLLRLRLLRRRRRRLLLRLLRRLRRLLLLRRRRLRRRRLLRRLLLLLLRRRLLRRR
80 56 1 53 17 68 20 46 26 78 41 63 47 54 57 22 39 71 62 61 79 72 70 19 35 29 5 28 7 45 64 16 38 9 4 31 21 14 55 3 33 49 32 8 51 74 12 13 11 27 52 59 73 24 50 76 40 66 75 80 44 48 2 37 36 18 67 77 43 65 10 30 34 58 6 60 25 42 15 23 69
0
