Description
Roliygu is famous because he likes to play games. Today he puts a chessboard in the desktop,and plays a game with Yilan. The size of the chessboard is n by n. A stone is placed in a corner square. They play alternatively with Roliygu having the first move. Each time,player is allowed to move the stone to an unvisited neighbor square horizontally or vertically. The one who can’t make a move will lose the game. If both play perfectly, who will win the game?