Route #1: 6 96 99 59 92 93 98 37 100 91 85 61 16 86 38 44 14 42 43 15 57 2 87 97 95 94 
Route #2: 53 26 12 80 68 29 24 54 4 55 25 39 67 23 56 75 22 41 74 72 73 21 40 58 13 
Route #3: 28 76 77 3 79 78 34 35 71 65 66 20 32 90 63 64 49 36 47 46 8 45 17 84 5 60 83 18 89 
Route #4: 27 69 1 50 33 81 9 51 30 70 10 62 11 19 48 82 7 88 31 52 
cost 681