removeInRange

import java.util.Iterator;
import java.util.LinkedList;
import java.util.Scanner;


public class deneme {
    public static void main(String arg[]) {
        Scanner con = new Scanner(System.in);
        String kelime = con.next();
        int a = con.nextInt();
        int b = con.nextInt();
        LinkedList<String> ll = new LinkedList<String>();
        char k = 'a';
        for(int i=0; i<26; i++) {
            ll.add("" + k);
            ll.add("" + (char)(k+1));
            ll.add("" + (char)(k+2));
            k++;
        }
        printLinkedList(ll);
        System.out.println();
        removeInRange(ll,kelime, a, b);
        printLinkedList(ll);

    }

    public static void removeInRange(LinkedList<String> l, String val, int a, int b) {
        for(int i=a; i<=b; i++) {
            if(l.get(i).equals(val)) {
                l.remove(i);
                i--;
            }
        }
    }

    public static void printLinkedList(LinkedList<String> l) {
        Iterator<String> itr = l.iterator();
        for(int i=0; itr.hasNext(); i++) {
            System.out.print(itr.next());
            if(itr.hasNext()) {
                System.out.print(", ");
            }
        }
    }


}