using System;
using System.Linq;

class Program
{
    static void Main()
    {
        var s = Console.ReadLine().ToCharArray();
        var a = Console.ReadLine().Split().Select(int.Parse).ToArray();
        var i = a[0];
        var j = a[1];
        var t = s[i];
        s[i] = s[j];
        s[j] = t;
        Console.WriteLine(s);
    }
}