CaesarCipher

using System;
using System.Text;

namespace CaesarCipher
{
    class MainClass
    {
        public static void Main(string[] args)
        {
            string text = Console.ReadLine();
            StringBuilder sb = new StringBuilder();

            foreach (var symbol in text)
            {
                sb.Append((char)(symbol + 3));
            }

            Console.WriteLine(sb);
        }
    }
}