import java.lang.*;
import java.util.*;

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

        int fruit = scan.nextInt();
        int num = scan.nextInt();

        int[] arr = new int[fruit];

        for (int i = 0; i < fruit; i++) {
            arr[i] = scan.nextInt();
        }

        Arrays.sort(arr);
        int sum = 0;
        for (int i = 0; i < num; i++) {
            sum += arr[i];
        }

        System.out.println(sum);
    }
}

/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