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

public class Main {
    public static void main(final String[] args) {
        final Scanner sc = new Scanner(System.in);
        final int N = sc.nextInt();
        final int K = sc.nextInt();

        final int[] p = new int[N];
        for (int i = 0; i < N; i++) {
            p[i] = sc.nextInt();
        }
        sc.close();

        final ArrayList<Integer> list = new ArrayList<Integer>();
        for (final int t : p)
            list.add(t);

        Collections.sort(list);

        int sum = 0;

        for (int i = 0; i < K; i++) {
            sum += list.get(i);
        }

        System.out.println(sum);

        return;
    }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz