// Arup Guha
// 3/8/2016
// Solution to 2016 UCF HS Contest Problem: Game of Plinko

import java.util.*;

public class plinko {

	public static int r;
	public static int c;
	public static char[][] board;

	public static void main(String[] args) {

		Scanner stdin = new Scanner(System.in);
		int numCases = stdin.nextInt();

		// Process each case.
		for (int loop=1; loop<=numCases; loop++) {

			// Read in the input.
			c = stdin.nextInt();
			r = stdin.nextInt();
			board = new char[r][];
			for (int i=0; i<r; i++)
				board[i] = stdin.next().toCharArray();

			int res = 0, colDrop = -1;

			// Try each column - update only when we get a better result.
			for (int i=1; i<c-1; i++) {
				int cur = simulate(i);
				if (cur > res) {
					res = cur;
					colDrop = i;
				}
			}

			// Output appropriately based on whether a solution exists or not.
			if (res > 0)
				System.out.println("Board #"+loop+": Drop at column "+colDrop+" for a score of "+res+" points.");
			else
				System.out.println("Board #"+loop+": Don't even bother dropping a coin. You can't win!");

			// After each case.
			System.out.println();
		}
	}

	public static int simulate(int col) {

		// Need to keep track of this.
		int dy = 0;
		int row = 0;
		int dx = 1;

		// We'll break out later.
		while (true) {

			// Calculate where to go next.
			int nextcol = col + dy;
			int nextrow = row + dx;

			// We made it to the bottom, get out!
			if (nextrow == r-1) return nextcol > 0 && nextcol < c ? board[nextrow][nextcol] - '0' : 0;

			// Going straight down...
			if (dy == 0) {

				// These stop us.
				if (board[nextrow][nextcol] == '_' || board[nextrow][nextcol] == '|') return 0;

				// Start moving right.
				if (board[nextrow][nextcol] == '\\') {
					dy = 1;
					dx = 0;
				}

				// Start moving left.
				if (board[nextrow][nextcol] == '/') {
					dy = -1;
					dx = 0;
				}
			}

			// Moving right or left.
			else {

				// These stop us.
				if (board[nextrow][nextcol] == '\\' || board[nextrow][nextcol] == '|' || board[nextrow][nextcol] == '/') return 0;

				// Now, we fall.
				if (board[nextrow][nextcol] == '.') {
					dy = 0;
					dx = 1;
				}

				if (board[nextrow][nextcol] == '_') {
					dx = 0;
				}
			}

			// Update our position.
			col = nextcol;
			row = nextrow;
		}
 	}
}