#include <bits/stdc++.h>
 
using namespace std;
 
const int ROW = 2;
const int COL = 2;
 
int get_rand_num(int n){
	return rand() % n;
}
 
int main(){
	srand(time(NULL));
	cout << ROW << endl;
	for(int i = 0; i < ROW; i++){
		for(int j = 0; j < COL; j++){
			if((i == 0 && j == 0) || (i == (ROW - 1) && j == (COL - 1))) cout << '.';
			else{
				int toss = get_rand_num(2);
				if(toss) cout << '.';
				else cout << '#';
			}
		}
		cout << endl;
	}
 
	cout << get_rand_num(ROW * COL) + 1 << endl;
	return 0;
}

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