#include <bits/stdc++.h>
int main() {
	std::cout << "END\n102 102\n";
	for (int i = 0; i < 101; ++i) std::cout << "#";
	for (int i = 0; i < 100; ++i) {
		std::cout << "#\n#";
		for (int j = 0; j < 100; ++j) std::cout << ".";
	}
	std::cout << "#\n";
	for (int i = 0; i < 102; ++i) std::cout << "#";
}