题解 | 小红的排列构造①

using System;
public class Program {
    public static void Main() {
        int n = int.Parse(Console.ReadLine());
        if(n == 1|| n== 2){
            Console.WriteLine(-1);
        }else{
            for(int i =3;i>= 1;i--){
                Console.Write(i+ " ");
            }
            for(int i=4;i<=n;++i){
                Console.Write(i+ " " );
            }
        }

    }
}