Find First and Last Letter is Whether Match or not Using C#

using System;
public class Program
{
   public static int CheckChar(string strValue)
   {
      char [] srtChar=strValue.ToCharArray();
      if(srtChar[0]==srtChar[strValue.Length-1])
      {
         return 1;
      }
      else
      {
         return -1;
      }
   }
   public static void Main()
   {
      string strValue;
      int retValue;
      Console.Write("Enter Your String:");
      strValue=Console.ReadLine();
      retValue=CheckChar(strValue);
      if(retValue==1)
      {
         Console.Write("First and Last Text Match");
      }
      else
      {
         Console.Write("First and Last Text Not Match");
      }
   }
}