As a condition for the delivery point anywhere, except for the initial shipping point is the number of objects is equal to the number of objects removed from the shipping point to the object 1.
Requiring as a condition for the transportation of all the buses except the substrate is equal to the number of objects to transport objects from the object 1.
As a condition for determining transit point all points except transportation points were equal to the number of objects in the initial object out of the transit point 1 objects.