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 sc = new Scanner(System.in);
		char[] s = sc.next().toCharArray();

		System.out.print(s[0]);
		System.out.print(s[1]);
		System.out.print(s[2]);
		System.out.print(s[3]);
		System.out.print(" ");
		System.out.print(s[4]);
		System.out.print(s[5]);
		System.out.print(s[6]);
		System.out.print(s[7]);
		System.out.print(s[8]);
		System.out.print(s[9]);
		System.out.print(s[10]);
		System.out.print(s[11]);


		System.out.println("");
		sc.close();
	}
}
