Route #1: 26 
Route #2: 45 29 5 37 20 15 13 54 19 8 
Route #3: 6 33 1 22 42 41 43 23 16 
Route #4: 17 3 44 32 9 39 40 
Route #5: 12 10 31 25 50 18 24 49 51 
Route #6: 38 11 14 53 35 7 
Route #7: 2 28 21 36 47 48 30 
Route #8: 4 27 52 46 34 
cost 588