To save money you are considering renting a small cube van to transport your belongings to the Big City. The interior of the van is a rectangular box with width w, height h, and length l. The box has a sliding door that lifts but only to height H. That is, there is an immovable overhang of height H-h at the top of the door.
You have a large rectangular box that you wish to load on the truck. Can you get it on the truck subject to the following constraints:
- The box must fit through the door, tilting it forward or sideways (but not both) as necessary (see figure below).
- The box must be placed with one side flat against the floor.
- The box must be placed with one side flat against the front wall.
- The door must close once the box is in place.
You may assume there are no obstructions (such as a ceiling or the ground) outside the truck that might interfere with loading.