using System;

namespace _16.TrickyStrings
{
    public class TrickyStrings
    {
        public static void Main()
        {
            string delimiter = Console.ReadLine();
            int n = int.Parse(Console.ReadLine());
            string result = "";

            for (int i = 1; i <= n; i++)
            {
                string word = Console.ReadLine();
                result += word + delimiter;

            }

            string removeLastChar = result.Remove(result.Length - delimiter.Length, delimiter.Length);
            Console.WriteLine($"{removeLastChar}");
        }
    }
}