import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;

public class p3 {

    public static void main(String[] args) {
        // TODO Auto-generated method stub


        Scanner s = new Scanner(System.in);

        int n = s.nextInt();
        int k = s.nextInt();

        ArrayList<Long> arr = new ArrayList<>();
        ArrayList<Long> arr1 = new ArrayList<>();

        for(int i = 0; i < n; i++) {
            long t = s.nextLong();
            arr.add(t);
            arr1.add(t);
        }
        Collections.sort(arr);
        long max = arr.get(arr.size() - 1);


        if(k == 1) {
            System.out.println(arr.get(0));
        }
        else if(k == 2) {

        }


        }










    }

}