消除类游戏

// package csp;

import java.util.*;
import java.io.*;

public class Main {
	public static int a[][]=new int [40][40]; 
	public static int f[][]=new int [40][40]; 
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner cin=new Scanner(new BufferedInputStream(System.in));
		int n=cin.nextInt(),m=cin.nextInt();
		for(int i=1;i<=n;i++)
		{
			for(int j=1;j<=m;j++)
			{
				a[i][j]=cin.nextInt();
			}
		}
		for(int i=1;i<=n;i++)
		{
			for(int j=1;j<=m;j++)
			{
				if(a[i][j-1]==a[i][j]&&a[i][j+1]==a[i][j]) {
					f[i][j]=1;
					f[i][j-1]=1;
					f[i][j+1]=1;
				}
				if(a[i-1][j]==a[i][j]&&a[i+1][j]==a[i][j]) {
					f[i-1][j]=1;
					f[i][j]=1;
					f[i+1][j]=1;
				}
			}
		}
		for(int i=1;i<=n;i++)
		{
			for(int j=1;j<=m;j++)
			{
				if(f[i][j]==1) {
					System.out.print(0+" ");
				}else {
					System.out.print(a[i][j]+" ");
				}
			}
			System.out.println();
		}
	}

}