#include <iostream>
#include <fstream>
using namespace std;

ifstream in("DATA1.txt");
ofstream out("OUT1.txt");

int main(){
	for (int p = 0; p != 5; ++p){
		int w;
		in >> w;
		int r = (w-1)/2;
		for (int i = r; i != 0; --i){
			for (int j = 0; j != i; ++j)
				out << '.';
			for (int j = 0; j != w-2*i; ++j)
				out << '#';
			for (int j = 0; j != i; ++j)
				out << '.';
			out << endl;
		}
		for (int i = 0; i <= r; ++i){
			for (int j = 0; j != i; ++j)
				out << '.';
			for (int j = 0; j != w-2*i; ++j)
				out << '#';
			for (int j = 0; j != i; ++j)
				out << '.';
			out << endl;
		}
	}
	return 0;
}