import java.util.Scanner;
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();
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<n;i++){
sum+=arr[i];
}
System.out.println(sum);
        sc.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