import java.util.*;

public class Main {
    public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		String str = scan.nextLine();
		int change1 = scan.nextInt();
		int change2 = scan.nextInt();
		for(int i = 0 ; i < str.length() ; i++){
			if(i == change1){
				System.out.print(str.charAt(change2));
			}else if(i == change2){
				System.out.print(str.charAt(change1));
			}else{
				System.out.print(str.charAt(i));
			}
		}
		
    }
}