Please help the 3 cannibals and missionaries to move to the other side of the
lake. Notice that: when there are more cannibals on one side than missionaries,
the cannibals eat them.
How to play: Click on a cannibal to put him on the boat and also click on the
missionary to put him on the boat. In order to move them to the other side of
the lake, click the GO button at the top of the screen.