using System;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

​

        string str = "SHINCHAN";

​

        string str2 = "NOHARAAA";

        string s = "1234568";

        //Console.WriteLine(s.LastIndexOf('8',6 - 1));

        Console.WriteLine("Hello World");

        //Str("", 7, str,str2);

    }

​

    public static void Str(string str, int num, string str2,string str3, Dictionary<char,int> dict,int[] arr)

    {

        if (num == str2.Length)

        {

            Console.WriteLine(str);

        }

​

        for (int i = num; i < str2.Length; i++)

        {

            Console.WriteLine(str3.LastIndexOf(str2[i],str2.Length - 1));

            if (str3.LastIndexOf(str2[i],str2.Length - 1) > -1)

            {

                dict[str2[i]] = str3.LastIndexOf(str2[i],str2.Length - 1);

            }

            //Str(str + str2[num], i + 1, str2);

        }

    }

}