import java.util.*;

public class Main {
  public static void main(String args[]) {
    Scanner scanner = new Scanner(System.in);
    int n,k;
    n = scanner.nextInt();
    k = scanner.nextInt();
    
    ArrayList<Integer> p = new ArrayList<Integer>();
    
    int x;
    for(int i = 0;i < n ; i++) { 
      x = scanner.nextInt();
      p.add(x);
    }
    
    Collections.sort(p);
    
    int ans = 0;
    for(int i = 0; i < k;i++) { 
      ans+=p.get(i);
    }
    
    System.out.println(ans);
}
}
/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