Problem Description

The name of this contest is CODE FESTIVAL. However, Takahashi always mistakenly writes it as CODEFESTIVAL, omitting the space between CODE and FESTIVAL.

Therefore, Takahashi decided to create a program to restore the omitted space.

You are given a string $ s $ of length $ 12 $. Insert one space between the first $ 4 $ characters and the last $ 8 $ characters of $ s $ and output it.

Input Format

The input is given from the standard input in the following format:

$ s $

Output Format

Insert one space between the first $ 4 $ characters and the last $ 8 $ characters of $ s $ and output it. Ensure a newline at the end of the output.

Sample Input and Output

Sample Input #1

CODEFESTIVAL

Sample Output #1

CODE FESTIVAL

Sample Input #2

POSTGRADUATE

Sample Output #2

POST GRADUATE

Sample Input #3

ABCDEFGHIJKL

Sample Output #3

ABCD EFGHIJKL

Notes/Hints

Constraints

• $ s $ is of length $ 12 $.
• $ s $ consists only of uppercase English letters.

Sample Explanation 1

Inserting one space between the first $ 4 $ characters and the last $ 8 $ characters of CODEFESTIVAL results in CODE FESTIVAL.

见题面 Input 部分

见题面 Output 部分