题解 | #查找组成一个偶数最接近的两个素数#

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        while (in.hasNext()) {
            int min=0;
            int max=0;
            int oushu = in.nextInt();
            oushu=oushu/2;
            for (int i = 0; i < oushu; i++) {
                min=oushu-i;
                max=oushu+i;
                if(jiancha(max)==0&&jiancha(min)==0){
                    System.out.println(min);
                    System.out.println(max);
                    break;
                }
            }
        }
    }

    public static int jiancha(int a) {
        int k=0;
        for (int i = 2; i < a ; i++) {
            if (a % i == 0) {
                k=-1;
                break;
            } else {
                k= 0;
            }
        }
        return k;
    }
}