# Value: 4 points
case 1
shelf 1 300 100
shelf 1 200 200
book a 20 50
book b 30 80
book c 40 40
add a 1
add b 1
add c 1
book .NET_in_a_Nutshell 100 400
add .NET_in_a_Nutshell 1
pcase 1
shelf 1 150 1000
add .NET_in_a_Nutshell 1
pcase 1