using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;

class Program
{
    static int NN => int.Parse(ReadLine());
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    static int[][] NArr(long n) => Enumerable.Repeat(0, (int)n).Select(_ => NList).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var a = ReadLine();
        var s = ReadLine();
        var t = s.ToCharArray();
        for (var i = 0; i < t.Length; ++i) if (t[i] >= '0' && t[i] <= '9') t[i] = a[t[i] - '0'];
        WriteLine(string.Concat(t));
    }
}