using System;
using static System.Console;

public class Hello{
    public static void Main(){
        string word = ReadLine();
        string[] num = ReadLine().Split(' ');
        int a = int.Parse(num[0]);
        int b = int.Parse(num[1]);
        for(int i=0;i<word.Length;i++){
            if(i == a){
                Write(word[b]);
            }else if(i == b){
                Write(word[a]);
            }else{
                Write(word[i]);
            }
        }
        WriteLine("");
    }
}