Given jugs with capacities 4, 8 and 19, target 1 is achievable using 20 gallons of water. Given jugs with capacities 4, 8 and 19, target 2 is achievable using 30 gallons of water. Given jugs with capacities 4, 8 and 19, target 3 is achievable using 19 gallons of water. Given jugs with capacities 4, 8 and 19, target 4 is achievable using 4 gallons of water. Given jugs with capacities 4, 8 and 19, target 5 is achievable using 20 gallons of water. Given jugs with capacities 4, 8 and 19, target 6 is achievable using 30 gallons of water. Given jugs with capacities 4, 8 and 19, target 7 is achievable using 19 gallons of water. Given jugs with capacities 4, 8 and 19, target 8 is achievable using 8 gallons of water. Given jugs with capacities 4, 8 and 19, target 9 is achievable using 20 gallons of water. Given jugs with capacities 4, 8 and 19, target 10 is achievable using 30 gallons of water. Given jugs with capacities 4, 8 and 19, target 11 is achievable using 19 gallons of water. Given jugs with capacities 4, 8 and 19, target 12 is achievable using 12 gallons of water. Given jugs with capacities 4, 8 and 19, target 13 is achievable using 24 gallons of water. Given jugs with capacities 4, 8 and 19, target 14 is achievable using 30 gallons of water. Given jugs with capacities 4, 8 and 19, target 15 is achievable using 19 gallons of water. Given jugs with capacities 4, 8 and 19, target 16 is achievable using 16 gallons of water. Given jugs with capacities 4, 8 and 19, target 17 is achievable using 28 gallons of water. Given jugs with capacities 4, 8 and 19, target 18 is achievable using 30 gallons of water.