" Sip-Pat-La" is one of the popular dice games in Taiwan.

Players roll four dice in the game and score the results. There are three conditions:

1. Win-take-all: Four dice have the same number;
2. Meaningless: Four dice have different numbers, or three dice have the same number;
3. Score: Two dice have the same number; the score is the sum of the rest two dice. If the four numbers are two pairs, select the pair with the bigger number to calculate the score.

Please write a program and input the four dice numbers respectively to judge the result.

有一種坊間常見的擲骰子遊戲稱為 "18 啦 "~

其玩法是玩家擲四個骰子來算分，會產生有三種結果：

1.通殺：四 顆骰子點數均相同；

2.無意義：三顆骰子點數相同，或四顆骰子點數均不相同；

3.計分：兩個骰子相同點數，分數即為另兩個骰子點數和；若四個骰子的點數兩兩相同形成兩對，分數選擇較多點數和的那一對骰子。