import java.util.ArrayDeque;
import java.util.Collections;
import java.util.Scanner;

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

        ArrayDeque<Integer> queue = new ArrayDeque<>();

        String[] commands = sc.nextLine().split("\\s+");
        String[] nums = sc.nextLine().split("\\s+");

        int N = Integer.parseInt(commands[0]);//add
        int S = Integer.parseInt(commands[1]);//remove/poll
        int X = Integer.parseInt(commands[2]);//true X or smallest

        for (int i = 0; i < N; i++) {
            int toAdd = Integer.parseInt(nums[i]);
            queue.add(toAdd);
        }
        for (int i = 0; i < S; i++) {
            if(!queue.isEmpty()) {
                queue.remove();
            }
        }
        if (queue.contains(X)) {
            System.out.println("true");
        } else {
            if (!queue.isEmpty()) {
                int start = queue.peek();
                for (int i = 0; i < queue.size(); i++) {
                    int currentNum = queue.peek();
                    if (currentNum < start) {
                        start = currentNum;
                    }
                }
                System.out.println(start);
            } else {
                System.out.println(0);
            }
        }


    }
}
//4 1 666
//666 69 13 420