import java.io.*;
import java.math.*;
import java.security.*;
import java.text.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.function.*;
import java.util.regex.*;
import java.util.stream.*;
import static java.util.stream.Collectors.joining;
import static java.util.stream.Collectors.toList;


class Node {
    int x;
    int y;
    int choices;
    public Node(int x, int y, int c) {
        this.x = x;
        this.y = y;
        this.choices = c;
    }
    
    @Override
    public boolean equals(Object o) {
        Node n = (Node) o;
        return (n.x == x && n.y == y && n.choices == choices);
    }
    @Override
    public int hashCode() {
        return x * 129 + y * 47 + choices;
    }
}


class Result {

    /*
     * Complete the 'countLuck' function below.
     *
     * The function is expected to return a STRING.
     * The function accepts following parameters:
     *  1. STRING_ARRAY matrix
     *  2. INTEGER k
     */

    public static String getk(int x, int y) {
        return x + " " + y;
    }
    

    public static String countLuck(List<String> matrix, int k) {
    // Write your code here
    // BFS, count choices.
        int[] dx = {-1, 0, 0, 1};
        int[] dy = {0, 1, -1, 0};
        Queue<Node> todo = new LinkedList<>();
        int x = 0;
        int y = 0;
        int n = matrix.size();
        int m = matrix.get(0).length();
        Set<String> dots = new HashSet<>();
        int goalx = 0;
        int goaly = 0;
        for (int j = 0; j < n; j++) {
            String s = matrix.get(j);
            for (int i = 0; i < m; i++) {
                char c = s.charAt(i);
                if (c == 'M') {
                    x = i;
                    y = j;
                }
                if (c == '.' || c == '*') {
                    dots.add(getk(i, j));
                }
                if (c == '*') {
                    goalx = i;
                    goaly = j;
                }
            }
        }
        Set<String> seen = new HashSet<>();
        todo.add(new Node(x, y, 0));
        System.err.println("dots:" + dots);
        while (true) {
            Node here = todo.remove();
            seen.add(getk(here.x, here.y));
            // count paths.
            x = here.x;
            y = here.y;
            if (x == goalx && y == goaly) {
                if (here.choices == k) {
                    return "Impressed";
                };
                return "Oops!";
            }
            int count = 0;
            List<Node> addme = new ArrayList<>();
            for (int q = 0; q < 4; q++) {
                int nx = x + dx[q];
                int ny = y + dy[q];
                String key = getk(nx, ny);
                if (! seen.contains(key) && dots.contains(key)) {
                    count++;
                    addme.add(new Node(nx, ny, 0));
                }
            }
            int bump = (count > 1)? 1 : 0;
            here.choices += bump;
            for (Node node : addme) {
                node.choices = here.choices;
            }
            todo.addAll(addme);
        }
    }
}

public class Solution {
    public static void main(String[] args) throws IOException {
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));

        int t = Integer.parseInt(bufferedReader.readLine().trim());

        IntStream.range(0, t).forEach(tItr -> {
            try {
                String[] firstMultipleInput = bufferedReader.readLine().replaceAll("\\s+$", "").split(" ");

                int n = Integer.parseInt(firstMultipleInput[0]);

                int m = Integer.parseInt(firstMultipleInput[1]);

                List<String> matrix = IntStream.range(0, n).mapToObj(i -> {
                    try {
                        return bufferedReader.readLine();
                    } catch (IOException ex) {
                        throw new RuntimeException(ex);
                    }
                })
                    .collect(toList());

                int k = Integer.parseInt(bufferedReader.readLine().trim());

                String result = Result.countLuck(matrix, k);

                bufferedWriter.write(result);
                bufferedWriter.newLine();
            } catch (IOException ex) {
                throw new RuntimeException(ex);
            }
        });

        bufferedReader.close();
        bufferedWriter.close();
    }
}

class Result {
  
  public static String countLuck(List<String> matrix, int k) {
        int rows = matrix.size();
        int cols = matrix.get(0).length();
        char[][] matrixArr = new char[rows][cols];
        int startX = -1;
        int startY = -1;

        // Parse the input matrix into a 2D char array and locate the starting position 'M'
        for (int i = 0; i < rows; i++) {
            for (int j = 0; j < cols; j++) {
                matrixArr[i][j] = matrix.get(i).charAt(j);
                if (matrixArr[i][j] == 'M') {
                    startX = i;
                    startY = j;
                }
            }
        }

        // Count the "waves" (decision points) to determine the path
        int waves = getWaves(matrixArr, startX, startY);

        // Return "Impressed" if the waves match k, otherwise "Oops!"
        return waves == k ? "Impressed" : "Oops!";
    }

    private static int getWaves(char[][] matrixArr, int startX, int startY) {
        int[][] directions = {{0, 1}, {1, 0}, {0, -1}, {-1, 0}};
        Queue<int[]> cells = new LinkedList<>();
        boolean[][] visited = new boolean[matrixArr.length][matrixArr[0].length];
        cells.offer(new int[]{startX, startY, 0}); // Starting position and wave count

        while (!cells.isEmpty()) {
            int[] curCellPos = cells.poll();
            int curX = curCellPos[0];
            int curY = curCellPos[1];
            int waveCount = curCellPos[2];

            // If the current cell is the destination '*', return the wave count
            if (matrixArr[curX][curY] == '*') {
                return waveCount;
            }

            // Mark the current cell as visited
            visited[curX][curY] = true;

            // Check if the current cell is a decision point and increase wave count if true
            if (isDecisionPoint(matrixArr, visited, curX, curY)) {
                waveCount++;
            }

            // Add valid neighboring cells to the queue
            for (int[] dir : directions) {
                int newX = curX + dir[0];
                int newY = curY + dir[1];
                if (isValid(matrixArr, newX, newY) &&
                        (matrixArr[newX][newY] == '.' || matrixArr[newX][newY] == '*') &&
                        !visited[newX][newY]) {
                    cells.offer(new int[]{newX, newY, waveCount});
                }
            }
        }

        // Return 0 if the destination is unreachable (edge case)
        return 0;
    }

    private static boolean isDecisionPoint(char[][] matrixArr, boolean[][] visited, int x, int y) {
        int[][] directions = {{0, 1}, {1, 0}, {0, -1}, {-1, 0}};
        int paths = 0;

        // Check all four directions for valid and unvisited paths
        for (int[] dir : directions) {
            int newX = x + dir[0];
            int newY = y + dir[1];
            if (isValid(matrixArr, newX, newY) &&
                    (matrixArr[newX][newY] == '.' || matrixArr[newX][newY] == '*') &&
                    !visited[newX][newY]) {
                paths++;
            }
        }

        // A decision point occurs when there is more than one valid path
        return paths > 1;
    }

    private static boolean isValid(char[][] matrixArr, int x, int y) {
        int rows = matrixArr.length;
        int cols = matrixArr[0].length;

        // Check if the coordinates are within bounds
        return x >= 0 && x < rows && y >= 0 && y < cols;
    }
}

<?php

function findStartingPoint($matrix) {
    foreach ($matrix as $i => $row) {
        $col = strpos($row, 'M');
        if ($col !== false) {
            return [$i, $col];
        }
    }
    return [-1, -1];
}

function isWithinBounds($x, $y, $n, $m) {
    return $x >= 0 && $x < $n && $y >= 0 && $y < $m;
}

function countLuck($matrix, $k) {
    list($n, $m) = [count($matrix), strlen($matrix[0])];
    list($startX, $startY) = findStartingPoint($matrix);
    $dx = [-1, 1, 0, 0];
    $dy = [0, 0, -1, 1];
    $queue = [[$startX, $startY, 0]];
    $visited = array_fill(0, $n, array_fill(0, $m, false));
    $visited[$startX][$startY] = true;

    while (!empty($queue)) {
        list($x, $y, $waveCount) = array_shift($queue);

        if ($matrix[$x][$y] === '*') {
            return $waveCount === $k ? "Impressed" : "Oops!";
        }

        $possibleMoves = 0;
        foreach (range(0, 3) as $i) {
            $nx = $x + $dx[$i];
            $ny = $y + $dy[$i];
            if (isWithinBounds($nx, $ny, $n, $m) && !$visited[$nx][$ny] && $matrix[$nx][$ny] !== 'X') {
                $possibleMoves++;
            }
        }

        foreach (range(0, 3) as $i) {
            $nx = $x + $dx[$i];
            $ny = $y + $dy[$i];
            if (isWithinBounds($nx, $ny, $n, $m) && !$visited[$nx][$ny] && $matrix[$nx][$ny] !== 'X') {
                $visited[$nx][$ny] = true;
                $queue[] = [$nx, $ny, $waveCount + ($possibleMoves > 1 ? 1 : 0)];
            }
        }
    }

    return "Oops!";
}

// Input reading
$handle = fopen("php://stdin", "r");
$testCases = intval(fgets($handle));
for ($t = 0; $t < $testCases; $t++) {
    list($n, $m) = array_map('intval', explode(' ', fgets($handle)));
    $matrix = [];
    for ($i = 0; $i < $n; $i++) {
        $matrix[] = trim(fgets($handle));
    }
    $k = intval(fgets($handle));
    echo countLuck($matrix, $k) . "\n";
}
fclose($handle);

?>

def search(g, m, n, i, j, c = 0):
    if g[i][j] == '*':
        return c
    g[i][j] = 0
    moves = getmoves(g, m, n, i, j)
    if len(moves) > 1:
        c += 1
    for mv in moves:
        res = search(g, m, n, mv[0], mv[1], c)
        if res != None:
            return res
    return None

def getmoves(g, m, n, i, j):
    l, v = [], ('.', '*')
    if i > 0 and g[i - 1][j] in v:
        l.append((i - 1, j))
    if j > 0 and g[i][j - 1] in v:
        l.append((i, j - 1))
    if i < m - 1 and g[i + 1][j] in v:
        l.append((i + 1, j))
    if j < n - 1 and g[i][j + 1] in v:
        l.append((i, j + 1))
    return l

for _ in range(int(input())):
    m, n = map(int, input().split())
    g = [list(input()) for _ in range(m)]
    k = int(input())
    for i in range(m):
        for j in range(n):
            if g[i][j] == 'M':
                print('Impressed' if search(g, m, n, i, j) == k else 'Oops!')
                break