102641: [AtCoder]ABC264 B - Nice Grid

Problem Statement

Print the color of the cell at the $R$-th row from the top and $C$-th column from the left in the following grid with $15$ vertical rows and $15$ horizontal columns.

Constraints

• $1 \leq R, C \leq 15$
• $R$ and $C$ are integers.

Input

Input is given from Standard Input in the following format:

$R$ $C$

Output

In the grid above, if the color of the cell at the $R$-th row from the top and $C$-th column from the left is black, then print black; if the cell is white, then print white. Note that the judge is case-sensitive.

Sample Input 1

3 5

Sample Output 1

black

In the grid above, the cell at the $3$-rd row from the top and $5$-th column from the left is black. Thus, black should be printed.

Sample Input 2

4 5

Sample Output 2

white

In the grid above, the cell at the $4$-th row from the top and $5$-th column from the left is white. Thus, white should be printed.

问题描述

在下面的网格中，打印从上数第$R$行、从左数第$C$列的单元格的颜色。该网格有15行15列。

约束条件

• $1 \leq R, C \leq 15$
• $R$和$C$为整数。

输入

输入从标准输入以以下格式给出：

$R$ $C$

输出

在上述网格中，如果从上数第$R$行、从左数第$C$列的单元格颜色为黑色，则打印black；如果单元格颜色为白色，则打印white。请注意，裁判区分大小写。

样例输入1

3 5

样例输出1

black

在上述网格中，从上数第3行、从左数第5列的单元格为黑色。因此，应打印black。

样例输入2

4 5

样例输出2

white

在上述网格中，从上数第4行、从左数第5列的单元格为白色。因此，应打印white。