// Program 65: Delete a Specified Occurrence of a Word

import java.util.*;
class DeleteWordOccurrence {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String s = sc.nextLine().trim();
        if (!s.matches("[A-Z ]+[.?!]")) {
            System.out.println("INVALID INPUT");
            return;
        }
    char end = s.charAt(s.length() - 1);
    String body = s.substring(0, s.length() - 1).trim().replaceAll(" +", " ");
    String target = sc.nextLine().trim();
    int position = Integer.parseInt(sc.nextLine().trim());
    String[] words = body.split(" ");
    StringBuilder result = new StringBuilder();
    int count = 0;
    for (String word : words) {
        if (word.equals(target)) {
            count++;
        }
    if (!(word.equals(target) && count == position)) {
        if (result.length() > 0) {
            result.append(' ');
        }
    result.append(word);
}
}
if (count < position || position < 1) {
    System.out.println("WORD OCCURRENCE NOT FOUND");
}
else {
    System.out.println(result + String.valueOf(end));
}
}
}