using System;
using System.Linq;
public class Hello{
    public static void Main(){
        
        char[] letters = Console.ReadLine().ToArray();
        int[] num = Console.ReadLine().Split().Select(int.Parse).ToArray();
        
        char c = letters[num[0]];
        letters[num[0]]=letters[num[1]];
        letters[num[1]]=c;
        
        Console.WriteLine(string.Join("",letters));
    }
}