Design Tutorial: Learn from Math

题意翻译

输入一个数n(12<=n<=10^6)，找出两个合数x,y，使得x+y=n,如果有多组x,y,输出任意一组即可 【输入格式】：一个数，n 【输出格式】：两个数，中间用空格隔开，任意一组满足题意的x和y

题目描述

One way to create a task is to learn from math. You can generate some random math statement or modify some theorems to get something new and build a new task from that. For example, there is a statement called the "Goldbach's conjecture". It says: "each even number no less than four can be expressed as the sum of two primes". Let's modify it. How about a statement like that: "each integer no less than 12 can be expressed as the sum of two composite numbers." Not like the Goldbach's conjecture, I can prove this theorem. You are given an integer $ n $ no less than 12, express it as a sum of two composite numbers.

输入输出格式

输入格式

The only line contains an integer $ n $ $ (12<=n<=10^{6}) $ .

输出格式

Output two composite integers $ x $ and $ y $ $ (1<x,y<n) $ such that $ x+y=n $ . If there are multiple solutions, you can output any of them.

输入输出样例

输入样例 #1

12

输出样例 #1

4 8

输入样例 #2

15

输出样例 #2

6 9

输入样例 #3

23

输出样例 #3

8 15

输入样例 #4

1000000

输出样例 #4

500000 500000

说明

In the first example, 12 = 4 + 8 and both 4, 8 are composite numbers. You can output "6 6" or "8 4" as well. In the second example, 15 = 6 + 9. Note that you can't output "1 14" because 1 is not a composite number.

题意翻译

输入一个数n(12<=n<=10^6)，找出两个合数x,y，使得x+y=n,如果有多组x,y,输出任意一组即可 【输入格式】：一个数，n 【输出格式】：两个数，中间用空格隔开，任意一组满足题意的x和y