import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Scanner;

public class AloneNumbers {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        String[] numbers = sc.nextLine().split(", ");
        int[] line = new int[numbers.length];
        int n = sc.nextInt();
        List<Integer> newN = new ArrayList<>();

        for (int i = 0; i < numbers.length; i++) {
            line[i] = Integer.parseInt(numbers[i]);
        }

        if (line.length <= 2) {
            for (int element : line) {
                newN.add(element);
            }

            System.out.println(newN);
        } else {

            newN.add(line[0]);

            for (int i = 1; i < line.length - 1; i++) {
                if (line[i] == n && line[i] != line[i + 1] && line[i] != line[i - 1]) {
                    if (line[i + 1] >= line[i - 1]) {
                        newN.add(line[i + 1]);
                    } else if (line[i - 1] >= line[i + 1]) {
                        newN.add(line[i - 1]);
                    }
                } else {
                    newN.add(line[i]);
                }
            }

            newN.add(line[line.length - 1]);
            System.out.println(newN);
        }
    }
}