#include<bits/stdc++.h>
using namespace std;
#define int long long
int n,m,a[1000],b[1000][1000],sum,k,z,x;
char f;
signed main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	cout<<"###\n";
	cout<<"#.#\n";
	cout<<"###";
	
	
	
	
	
	
	
	
	
	
	
	
	
	
}