问题描述

有一个 $H$ 行 $W$ 列的网格。

第 $i$ 行第 $j$ 列的方块包含长度为 $5$ 的字符串 $S_{i,j}$。

行用从 $1$ 到 $H$ 的数字标记，列用从 A 到字母表的第 $W$ 个字母的大写英文字母标记。

网格中恰好有一个方块包含字符串 snuke。找到此方块并报告其位置。

例如，第 $6$ 行第 $8$ 列的方块应报告为 H6。

约束条件

• $1≦H, W≦26$
• $S_{i,j}$ 的长度为 $5$。
• $S_{i,j}$ 由小写英文字母（a-z）组成。
• 给定的字符串中只有一个等于 snuke。

输入

输入以以下格式从标准输入给出：

$H$ $W$ $S_{1,1}$ $S_{1,2}$ $...$ $S_{1,W}$ $S_{2,1}$ $S_{2,2}$ $...$ $S_{2,W}$ $:$ $S_{H,1}$ $S_{H,2}$ $...$ $S_{H,W}$

输出

打印包含字符串 snuke 的方块的行和列的标签，两者之间没有空格。

示例输入 1

15 10
snake snake snake snake snake snake snake snake snake snake
snake snake snake snake snake snake snake snake snake snake
snake snake snake snake snake snake snake snake snake snake
snake snake snake snake snake snake snake snake snake snake
snake snake snake snake snake snake snake snake snake snake
snake snake snake snake snake snake snake snuke snake snake
snake snake snake snake snake snake snake snake snake snake
snake snake snake snake snake snake snake snake snake snake
snake snake snake snake snake snake snake snake snake snake
snake snake snake snake snake snake snake snake snake snake
snake snake snake snake snake snake snake snake snake snake
snake snake snake snake snake snake snake snake snake snake
snake snake snake snake snake snake snake snake snake snake
snake snake snake snake snake snake snake snake snake snake
snake snake snake snake snake snake snake snake snake snake

示例输出 1

H6

示例输入 2

1 1
snuke

示例输出 2

A1