题目描述
Problem Statement
There is a grid with N rows and N columns, where each square has one white piece, one black piece, or nothing on it.
The square at the i-th row from the top and j-th column from the left is described by S_{i,j}. If S_{i,j} is W, the square has a white piece; if S_{i,j} is B, it has a black piece; if S_{i,j} is ., it is empty.
Takahashi and Snuke will play a game, where the players take alternate turns, with Takahashi going first.
In Takahashi's turn, he does one of the following operations.
- Choose a white piece that can move one square up to an empty square, and move it one square up (see below).
- Eat a black piece of his choice.
In Snuke's turn, he does one of the following operations.
- Choose a black piece that can move one square up to an empty square, and move it one square up.
- Eat a white piece of his choice.
The player who becomes unable to do the operation loses the game. Which player will win when both players play optimally?
Here, moving a piece one square up means moving a piece at the i-th row and j-th column to the (i-1)-th row and j-th column.
Note that this is the same for both players; they see the board from the same direction.
Input
Input is given from Standard Input in the following format:
N
$S_{1,1}S_{1,2}\ldots S_{1,N}$
$S_{2,1}S_{2,2}\ldots S_{2,N}$
$\vdots$
$S_{N,1}S_{N,2}\ldots S_{N,N}$
Output
If Takahashi will win, print Takahashi; if Snuke will win, print Snuke.
Constraints
- $1 \leq N \leq 8$
- N is an integer.
- S_{i,j} is W, B, or ..
Sample Input 1
3
BB.
.B.
...
Sample Output 1
Takahashi
If Takahashi eats the black piece at the 1-st row and 1-st columns, the board will become:
.B.
.B.
...
Then, Snuke cannot do an operation, making Takahashi win.
Note that it is forbidden to move a piece out of the board or to a square occupied by another piece.
Sample Input 2
2
..
WW
Sample Output 2
Snuke
Sample Input 3
4
WWBW
WWWW
BWB.
BBBB
Sample Output 3
Snuke
输入格式
见题面 Input 部分
输出格式
见题面 Output 部分