Fungi is going to hold a game among his friends. In the game his n (n is even) friends will be divided into two opponent groups. The two groups have exactly the same number of players. To make the game more exciting, it would be better to split the players in such a way that the absolute level difference between the two groups is minimum. Each player has a known level Li, and the level of a group is defined by the sum of all the levels of the group members. Can you help Fungi?
2 4 1 2 8 9 6 2 3 1 5 2 4