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

static class NagataKanaIsAGenius {
    public static void Main() {
        char[]s=Console.ReadLine().ToArray();
        int[]ij=Console.ReadLine().Split().Select(int.Parse).ToArray();
        int i=ij[0];
        int j=ij[1];
        char tmp=s[i];
        s[i]=s[j];
        s[j]=tmp;
        foreach(char c in s){
            Console.Write(c);
        }
        Console.WriteLine("");
    }
}