Derzaite2

using System;
using System.Collections.Generic;
using System.Linq;

namespace balancedParanthesis
{
    class Program
    {
        static void Main(string[] args)
        {
            var inputLine = Console.ReadLine().ToCharArray();

            var firstStack = new Stack<char>();
            var secondStack = new Stack<char>();
            bool NotEqual = false;
            if (inputLine.Length % 2 != 0)
            {
                Console.WriteLine("NO");
                return;
            }
            else if (inputLine.Length < 1)
            {
                Console.WriteLine("NO");
                NotEqual = true;
                return;
            }
            else
            {
                for (int i = 0; i < inputLine.Length / 2 ; i++)
                {
                    firstStack.Push(inputLine[i]);
                }
                for (int i = inputLine.Length - 1; i >= inputLine.Length / 2; i--)
                {
                    secondStack.Push(inputLine[i]);
                }
            }
            var reversedStack = secondStack.Reverse();

            while (firstStack.Any())
            {
                if (firstStack.Peek() - secondStack.Peek() <= 3 && firstStack.Peek()!= secondStack.Peek())
                {
                    firstStack.Pop();
                    secondStack.Pop();
                }
                else
                {
                    Console.WriteLine("NO");
                    NotEqual = true;
                    break;
                }
            }

            if (!NotEqual)
            {
                Console.WriteLine("YES");
            }
        }
    }
}