A boy Bob likes to draw. Not long ago he bought a rectangular graph (checked) sheet with n rows and m columns. Bob shaded some of the squares on the sheet. Having seen his masterpiece, he decided to share it with his elder brother, who lives in Flatland. Now Bob has to send his picture by post, but because of the world economic crisis and high oil prices, he wants to send his creation, but to spend as little money as possible. For each sent square of paper (no matter whether it is shaded or not) Bob has to pay 3.14 burles. Please, help Bob cut out of his masterpiece a rectangle of the minimum cost, that will contain all the shaded squares. The rectangle's sides should be parallel to the sheet's sides.

Input

The first line of the input data contains numbers n and m (1 ≤ n, m ≤ 50), n — amount of lines, and m — amount of columns on Bob's sheet. The following n lines contain m characters each. Character «.» stands for a non-shaded square on the sheet, and «*» — for a shaded square. It is guaranteed that Bob has shaded at least one square.

Output

Output the required rectangle of the minimum cost. Study the output data in the sample tests to understand the output format better.

Examples

Input

6 7
.......
..***..
..*....
..***..
..*....
..***..


Output

***
*..
***
*..
***


Input

3 3
***
*.*
***


Output

***
*.*
***

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author Administrator
 */
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Stack;
import java.util.StringTokenizer;

//codeforce
public class Main4 {

	private static BufferedReader in;
	private static PrintWriter out;
	private static StringTokenizer input;

	public static void main(String[] args) throws IOException {
		// -------------------------------------------------------------------------
		// Initializing...
		new Main4();
		// -------------------------------------------------------------------------
		// put your code here... :)
		int n = nextInt();
		int m = nextInt();
		String[] matrix = new String[n];
		int[] topLeft = new int[] { Integer.MAX_VALUE, Integer.MAX_VALUE };
		int[] topRight = new int[] { Integer.MAX_VALUE, Integer.MIN_VALUE };
		int[] buttomLeft = new int[] { Integer.MIN_VALUE, Integer.MAX_VALUE };
		int[] buttomRight = new int[] { Integer.MIN_VALUE, Integer.MIN_VALUE };
		for (int i = 0; i < n; i++) {
			matrix[i] = nextString();
			for (int j = 0; j < matrix[i].length(); j++) {
				if (matrix[i].charAt(j) == '*') {
					if (topLeft[0] > i) {
						topLeft[0] = i;
					}
					if (topLeft[1] > j) {
						topLeft[1] = j;
					}
					if (topRight[0] > i) {
						topRight[0] = i;
					}
					if (topRight[1] < j) {
						topRight[1] = j;
					}
					//
					if (buttomLeft[0] < i) {
						buttomLeft[0] = i;
					}
					if (buttomLeft[1] > j) {
						buttomLeft[1] = j;
					}
					if (buttomRight[0] < i) {
						buttomRight[0] = i;
					}
					if (buttomRight[1] < j) {
						buttomRight[1] = j;
					}
				}
			}
		}
		int minRow = Math.min(topLeft[0], topRight[0]);
		int maxRow = Math.max(buttomLeft[0], buttomRight[0]);
		int minColumn = Math.min(topLeft[1], buttomLeft[1]);
		int maxCloumn = Math.max(topRight[1], buttomRight[1]);
		StringBuilder result=new StringBuilder();
		
//		System.out.println("min row = " + minRow + "\n max row = " + maxRow + "\n min column = " + minColumn
//				+ "\n max column = " + maxCloumn);
		for (int i = minRow; i <= maxRow; i++) {
			result.append(matrix[i].substring(minColumn, maxCloumn+1)+"\n");
		}
		System.out.print(result);
		// writeln("");
		// -------------------------------------------------------------------------
		// closing up
		end();
		// --------------------------------------------------------------------------

	}

	private static String nextString() throws IOException {
		if (!input.hasMoreTokens())
			input = new StringTokenizer(in.readLine());
		return input.nextToken();
	}

	public Main4() throws IOException {
		// Input Output for Console to be used for trying the test samples of
		// the problem
		in = new BufferedReader(new InputStreamReader(System.in));
		out = new PrintWriter(System.out);
		// -------------------------------------------------------------------------
		// Initalize Stringtokenizer input
		input = new StringTokenizer(in.readLine());
	}

	private static int nextInt() throws IOException {
		if (!input.hasMoreTokens())
			input = new StringTokenizer(in.readLine());
		return Integer.parseInt(input.nextToken());
	}

	private static void end() throws IOException {
		in.close();
		out.close();
		System.exit(0);
	}

}
