

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


public class Main
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int k = sc.nextInt();
		int arr[] = new int[n];
		for(int i = 0; i<n; i++)
		{
			arr[i] = sc.nextInt();
		}
		Arrays.sort(arr);
		int sum = 0;
		for(int i = 0; i<k; i++)
		{
			sum = 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