Route #1: 3 44 32 50 18 25 9 40 
Route #2: 27 15 20 37 36 5 29 45 4 
Route #3: 46 8 35 14 19 54 13 52 34 
Route #4: 51 16 49 24 23 43 41 42 22 1 33 
Route #5: 39 31 10 38 11 53 7 
Route #6: 17 12 26 
Route #7: 6 2 28 21 47 48 30 
cost 568