There is a grid with $H$ horizontal rows and $W$ vertical columns. Each cell has a lowercase English letter written on it. We denote by $(i, j)$ the cell at the $i$\-th row from the top and $j$\-th column from the left. The letters written on the grid are represented by $H$ strings $S_1,S_2,\ldots, S_H$, each of length $W$. The $j$\-th letter of $S_i$ represents the letter written on $(i, j)$. There is a unique set of **contiguous cells (going vertically, horizontally, or diagonally)** in the grid with `s`, `n`, `u`, `k`, and `e` written on them in this order. Find the positions of such cells and print them in the format specified in the Output section. A tuple of five cells $(A_1,A_2,A_3,A_4,A_5)$ is said to form a set of **contiguous cells (going vertically, horizontally, or diagonally)** with `s`, `n`, `u`, `k`, and `e` written on them in this order if and only if all of the following conditions are satisfied. - $A_1,A_2,A_3,A_4$ and $A_5$ have letters `s`, `n`, `u`, `k`, and `e` written on them, respectively. - For all $1\leq i\leq 4$, cells $A_i$ and $A_{i+1}$ share a corner or a side. - The centers of $A_1,A_2,A_3,A_4$, and $A_5$ are on a common line at regular intervals.

The input is given from Standard Input in the following format: >$H$ $W$\ >$S_1$\ >$S_2$\ >$\vdots$\ >$S_H$ #### Constraints - $5\leq H\leq 100$ - $5\leq W\leq 100$ - $H$ and $W$ are integers. - $S_i$ is a string of length $W$ consisting of lowercase English letters. - The given grid has a unique conforming set of cells.

Print five lines in the following format. Let $(R_1,C_1), (R_2,C_2)\ldots,(R_5,C_5)$ be the cells in the sought set with `s`, `n`, `u`, `k`, and `e` written on them, respectively. The $i$\-th line should contain $R_i$ and $C_i$ in this order, separated by a space. In other words, print them in the following format: >$R_1$ $C_1$\ >$R_2$ $C_2$\ >$\vdots$\ >$R_5$ $C_5$ See also Sample Inputs and Outputs below.

***For Sample #1:*** Tuple $(A_1,A_2,A_3,A_4,A_5)=((5,2),(5,3),(5,4),(5,5),(5,6))$ satisfies the conditions. Indeed, the letters written on them are `s`, `n`, `u`, `k`, and `e`; for all $1\leq i\leq 4$, cells $A_i$ and $A_{i+1}$ share a side; and the centers of the cells are on a common line.  ***For Sample #2:*** Tuple $(A_1,A_2,A_3,A_4,A_5)=((5,5),(4,4),(3,3),(2,2),(1,1))$ satisfies the conditions. However, for example, $(A_1,A_2,A_3,A_4,A_5)=((3,5),(4,4),(3,3),(2,2),(3,1))$ violates the third condition because the centers of the cells are not on a common line, although it satisfies the first and second conditions.

AtCoder [ABC302B]