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

namespace _8._Balanced_Parentheses
{
    internal class Program
    {
        static void Main(string[] args)
        {
            string input = Console.ReadLine();
            Stack<string> stack = new Stack<string>();
            Queue<string> queue = new Queue<string>();

            for (int i = 0; i < input.Length; i++)
            {
                if (i < input.Length / 2)
                {
                    stack.Push(input[i].ToString()); continue;
                }

                queue.Enqueue(input[i].ToString());

            }
            bool isParenthesis = false;
            while (queue.Any())
            {

                string currQ = queue.Dequeue();
                string currS = stack.Pop();


                if ((currS == "{" && currQ == "}")
                    || (currS == "(" && currQ == ")")
                    || (currS == "[" && currQ == "]"))
                { isParenthesis = true; continue; }

                break;
            }
            Console.WriteLine(isParenthesis ? "YES" : "NO");

        }
    }
}