import java.util.Scanner; public class StrMoving { public static void main(String[] args) { Scanner jin = new Scanner(System.in); String str1=jin.nextLine(); String str2=str1.substring(0, 4)+str1.substring(str1.length()-2,str1.length())+str1.substring(4, str1.length()-2); System.out.println(str2); }