Boys, as a rule, have an overabundance of energy and strength, and they need to be put somewhere. The best way is to exercise. The hero of the game Jump! Jump! Boy is going to jump, he believes that he does it best. Well, let's see how he succeeds, because it is you who will control the movements of the boy. A water surface will appear in front of you, and round islands, similar to targets, are scattered on it. You need to jump on them, trying not to get into the water. Calculate the range and strength of the jump so as not to miss, and this is easy to do.