#141The Spot Game

The game of Spot is played on an N × N board as shown below for N = 4. During the game, alternate players may either place a black counter (spot) in an empty square or remove one from the board, thus producing a variety of patterns. If a board pattern (or its rotation by 90 degrees or 180 degrees) is repeated during a game, the player producing that pattern loses and the other player wins. The game terminates in a draw after 2N moves if no duplicate pattern is produced before then.

Consider the following patterns:

If the first pattern had been produced earlier, then any of the following three patterns (plus one other not shown) would terminate the game, whereas the last one would not.

Input

Input will consist of a series of games, each consisting of the size of the board, N (2 ≤ N ≤ 50) followed, on separate lines, by 2N moves, whether they are all necessary or not. Each move will consist of the coordinates of a square (integers in the range 1..N ) followed by a blank and a character '+' or '-' indicating the addition or removal of a spot respectively. You may assume that all moves are legal, that is there will never be an attempt to place a spot on an occupied square, nor to remove a non-existent spot. Input will be terminated by a zero (0).

Output

Output will consist of one line for each game indicating which player won and on which move, or that the game ended in a draw. See the Sample Output below for the exact format.

LOCAL 盤面歷史規則

盤面歷史從第一個完成操作後開始記錄，開局尚未落子的空盤不預先加入。操作後第一次出現空盤時正常記錄，之後與先前完成操作的任何盤面相同或旋轉相同，才會觸發重複。旋轉包含零、九十、一百八十及二百七十度，不含鏡射。此規則與本平台既有測資一致。

2
1 1 +
2 2 +
2 2 -
1 2 +
2
1 1 +
2 2 +
1 2 +
2 2 -
0

Player 2 wins on move 3
Draw