/* package whatever; // don't place package name! */

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

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
        for(int k=0;k<5;++k) {
           switch(k) {
           case 3: continue;
           }
           System.out.println(k);
        }
	}
}