import java.util.*;
 
public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    int k = sc.nextInt();
    ArrayList<Integer> fruit = new ArrayList<Integer>();
    for(int i = 0;i < n;i++){
      fruit.add(sc.nextInt());
    }
    int sum = 0;
    Collections.sort(fruit);
    for(int i = 0;i < k;i++){
      sum += fruit.get(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