An airline is using airplanes of various sizes to ship containers between two airports. Each

shipment consists of a number of standardized containers that must be loaded on the airplanes so

as to minimize the amount of unused space. As several shipments of different sizes arrive at the

airport, the airline must decide which shipment is loaded on which plane. The following rules are

applied:

$-$ All airplanes are flying to the same destination, i$.$e$.$ a shipment can be added to any

airplane.

$-$ A shipment cannot be split among different airplanes.

$-$ Once a shipment is loaded on a plane, it cannot be unloaded before departure.

You are tasked with writing a program that will assign shipments to airplanes in the order of the

shipments$$ arrival at the airport. The airline you work for operates Airbus A$321$ planes with a

capacity of $10$ containers each, Boeing B$777$ airplanes with a capacity of $32$ containers each, and

Boeing B$787$ airplanes with a capacity of $40$ containers each.