import uk.ac.warwick.dcs.util.io.IO;

public class a342
{
	public static void main(String[] args)
	{
		int findFactorial = IO.readint("Enter the number you want the factorial of: ");
		int increment;
		int factorial = 1;
		for(increment = 1; increment <= findFactorial; increment + 1) {
			factorial = factorial * increment;
		}
		System.out.println("The factorial of " + findFactorial + "is: " + factorial);
	}
}