import java.util.*;
import java.lang.*;
import java.io.*;

public class Main
{
	public static void main (String[] args) 
	{
		
		int X = 4;
		int Y = 5;
		int T = Y;
		
		Y = X;
		X = T;
		
		System.out.println("Zahl 1 = " + X + "\n");
		System.out.println("Zahl 2 = " + Y + "\n");
	}
}