1.

/*
 * ACM Contest training
 * Problem: 623 - 500!
 * Link: http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=8&page=show_problem&problem=564
 *
 * @author Christoph Goettschkes
 * @version 1.0, 10/24/2010
 *
 * Method : Ad-Hoc
 * Status : Accepted
 * Runtime: 0.980
 */


import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.List;
import java.util.ArrayList;
import java.math.BigInteger;

class Main
{

	public static List<BigInteger> l = new ArrayList<BigInteger>();

    	public static void main(String[] args) throws Exception
	{
		calc();

		BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
		String line = reader.readLine();

		while (true)
		{
			int n = Integer.parseInt(line);
			System.out.println(n + "!");
			System.out.println(l.get(n));

			if (!reader.ready())
				break;
			line = reader.readLine();
		}

    	}

	public static void calc() {
		int i = 1;
		BigInteger cur = new BigInteger("1");
		l.add(new BigInteger("1"));
		while (i <= 1000) {
			l.add(cur);
			cur = cur.multiply(new BigInteger(i+1+""));
			i++;
		}
	}
}