N = 18; Capacity = 160; Demand = [19, 30, 16, 23, 11, 31, 15, 28, 14, 8, 7, 14, 19, 11, 26, 17, 6, 15]; Distance = [| 0, 14, 19, 33, 22, 23, 12, 22, 32, 32, 21, 28, 30, 31, 30, 32, 39, 44, 16 | 14, 0, 15, 19, 12, 24, 12, 19, 21, 27, 7, 19, 16, 33, 17, 31, 27, 31, 19 | 19, 15, 0, 21, 26, 10, 7, 4, 17, 13, 16, 33, 25, 18, 29, 16, 24, 30, 9 | 33, 19, 21, 0, 21, 31, 25, 23, 8, 24, 12, 25, 9, 37, 16, 32, 10, 12, 30 | 22, 12, 26, 21, 0, 36, 24, 30, 26, 37, 12, 7, 13, 44, 9, 42, 31, 33, 30 | 23, 24, 10, 31, 36, 0, 13, 8, 25, 13, 26, 43, 35, 8, 39, 9, 32, 38, 7 | 12, 12, 7, 25, 24, 13, 0, 10, 23, 20, 16, 31, 26, 21, 28, 21, 30, 35, 7 | 22, 19, 4, 23, 30, 8, 10, 0, 18, 10, 19, 37, 28, 15, 32, 12, 24, 30, 9 | 32, 21, 17, 8, 26, 25, 23, 18, 0, 17, 15, 32, 17, 31, 23, 25, 7, 13, 26 | 32, 27, 13, 24, 37, 13, 20, 10, 17, 0, 25, 44, 31, 16, 37, 9, 21, 27, 18 | 21, 7, 16, 12, 12, 26, 16, 19, 15, 25, 0, 19, 10, 34, 13, 31, 21, 24, 22 | 28, 19, 33, 25, 7, 43, 31, 37, 32, 44, 19, 0, 16, 51, 10, 49, 35, 36, 38 | 30, 16, 25, 9, 13, 35, 26, 28, 17, 31, 10, 16, 0, 43, 6, 38, 19, 20, 32 | 31, 33, 18, 37, 44, 8, 21, 15, 31, 16, 34, 51, 43, 0, 47, 7, 36, 42, 15 | 30, 17, 29, 16, 9, 39, 28, 32, 23, 37, 13, 10, 6, 47, 0, 43, 26, 26, 35 | 32, 31, 16, 32, 42, 9, 21, 12, 25, 9, 31, 49, 38, 7, 43, 0, 30, 36, 16 | 39, 27, 24, 10, 31, 32, 30, 24, 7, 21, 21, 35, 19, 36, 26, 30, 0, 6, 33 | 44, 31, 30, 12, 33, 38, 35, 30, 13, 27, 24, 36, 20, 42, 26, 36, 6, 0, 38 | 16, 19, 9, 30, 30, 7, 7, 9, 26, 18, 22, 38, 32, 15, 35, 16, 33, 38, 0 |];