Anagram program in C Sharp

Anagrams-Two strings are said to be Anagrams of each other if they share the same set of letters to form the respective strings.
for example: Dog->god, seat->eats..

Input

Please Enter the First String
viswanath
Please Enter Second String
nathviswa

Output
Strings Viswanath and nathviswa are Anagrams

Algorithm:

step 1:
convert two strings into character arrays with Lower case or Upper case.

step 2:
sort the arrays in either ascending or descending order.

step 3:

convert the character arrays into strings

step 4:

compare the strings , if the are equal then strings are anagrams
else they are not anagrams.

C# program to print the given strings are anagrams or not.

Code:

class Anagram
    {
        static void Main(string[] args)
        {    //Receive strings from User
            Console.WriteLine("Please Enter the First String");
            string firstString = Console.ReadLine();
            Console.WriteLine("Please Enter Second String");
            string secondString = Console.ReadLine();
            

            //compare lengths of 2 strings
            if(firstString.Length==secondString.Length)
            {
                 //convert the strings into character arrays with lowercase
                char[] ch1 = (firstString.ToLower()).ToCharArray();
                char[] ch2 = (secondString.ToLower()).ToCharArray();
                
                //sort the arrays
                Array.Sort(ch1);
                Array.Sort(ch2);
                 // convert the character arrays to strings
                String word1 = new String(ch1);
                string word2 = new String(ch2);
                // if two words are equal then 
                if(word1==word2)
                {
                    Console.WriteLine("Strings {0}  and {1}  are Anagrams ",firstString,secondString);
                }
                else
                {
                    Console.WriteLine("Strings {0}  and {1}  are Not Anagrams ", firstString, secondString);
                }
            }
            else
            {//if 2 strings length are not equal
                Console.WriteLine("Strings {0}  and {1}  are Not Anagrams ", firstString, secondString);
            }
        }
    }

Output

Please Enter the First String
viswanath
Please Enter Second String
nathviswa

Strings viswanath and nathviswa are Anagrams