This contest is `CODE FESTIVAL`. However, Mr. Takahashi always writes it `CODEFESTIVAL`, omitting the single space between `CODE` and `FESTIVAL`.

So he has decided to make a program that puts the single space he omitted.

You are given a string s with 12 letters. Output the string putting a single space between the first 4 letters and last 8 letters in the string s.

Constraints

* s contains exactly 12 letters.
* All letters in s are uppercase English letters.

Input

The input is given from Standard Input in the following format:


s


Output

Print the string putting a single space between the first 4 letters and last 8 letters in the string s. Put a line break at the end.

Examples

Input

CODEFESTIVAL


Output

CODE FESTIVAL


Input

POSTGRADUATE


Output

POST GRADUATE


Input

ABCDEFGHIJKL


Output

ABCD EFGHIJKL
import java.util.Scanner;


public class Main {
	
	public static void main(String[] args) {
		Scanner cin = new Scanner(System.in);
		
		String s = cin.nextLine();
		
		System.out.println(""+s.charAt(0)+s.charAt(1)+s.charAt(2)+s.charAt(3)+" "+s.charAt(4)+
				s.charAt(5)+s.charAt(6)+s.charAt(7)+s.charAt(8)+s.charAt(9)+s.charAt(10)+
				s.charAt(11));
	}

}