I'm currently completing a programming challenge in C#, I'm stuck on the main part. The application must take two words and see if they contain the same letters. How would I go about checking to see if `input1` and `input2` contain the same letters?

```
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Text.RegularExpressions;

namespace Words_With_Enemies
{
    class Program
    {

        static string input1, input2;

        public void findLetters()
        {
            bool regexWord1 = Regex.IsMatch(input1, @"^[a-zA-Z]+$");
        }

        static void Main(string[] args)
        {

            Console.WriteLine("Please enter two words");
            input1 = Console.ReadLine();
            input2 = Console.ReadLine();

            Console.WriteLine("You have entered the following two words:");
            Console.WriteLine(input1);
            Console.WriteLine(input2);

            Console.ReadLine();

        }

     }
}

```