import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        char[] arr = sc.next().toCharArray();
        int i = sc.nextInt();
        int j = sc.nextInt();
        char tmp = arr[i];
        arr[i] = arr[j];
        arr[j] = tmp;
        System.out.println(arr);
    }
}