
import java.util.*;

public class Main {
	static public void main(String args[]){
		Scanner sc=new Scanner(System.in);
		 
		int n=sc.nextInt(),k=sc.nextInt();
		
		List<Integer>list=new ArrayList<>();
		
		for(int i=0;i<n;i++){
			int num=sc.nextInt();
			list.add(num);
		}
		Collections.sort(list);
		int sum=0;
		for(int i=0;i<k;i++){
			sum+=list.get(i);
		}
		System.out.print(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