AnonymousVox

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace _03.AnonymousVox
{
    public class StartUp
    {
        public static void Main()
        {
            string input = Console.ReadLine();
            string placeholder = Console.ReadLine();
            string inputPattern = @"([a-zA-Z]+)(.+)\1";
            string result = string.Empty;
            var placeholderCollection = placeholder.Split(new char[] { '{', '}' }, StringSplitOptions.RemoveEmptyEntries);
            Regex inputRegex = new Regex(inputPattern);
            MatchCollection matches = inputRegex.Matches(input);
            int index = 0;
            foreach (Match match in matches)
            {
                if (index >= placeholderCollection.Length)
                {
                    break;
                }
                string oldValue = match.Groups[2].ToString();
                string newValue = placeholderCollection[index++];
                string oldValueSubstring = input.Substring(0, input.IndexOf(oldValue) + oldValue.Length);
                string newValueSubstring = oldValueSubstring.Replace(oldValue, newValue);
                input = newValueSubstring + input.Substring(oldValueSubstring.Length);
            }
            Console.WriteLine(input);
        }
    }
}