In this problem, Karel finds himself in an even more challenging environment: a maze. This time

there is an extra incentive to make it out though, since at the end there are two packages

$($

items

$)$

$$for him. An example of a maze is shown below, but your solution should again be

general enough to work for more than this particular example. However, the maze will not

contain any loops. This is known as a maze being "simply connected".