/*package whatever //do not write package name here */
import java.util.*;
import java.lang.*;
import java.io.*;

class Main {
	public static void main (String[] args) {
// 		System.out.println("GfG!");
        Scanner input=new Scanner(System.in);
       int n=input.nextInt();
       int k=input.nextInt();
       int[] p=new int[n];
       for(int i=0;i<n;i++)
            p[i]=input.nextInt();
        Arrays.sort(p);
        int ans=0;
        for(int i=0;i<k;i++)
            ans+=p[i];
        System.out.println(ans);
       input.close();
	}
}
/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