import java.util.*;

class Main
{
    public  static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        
        int n = sc.nextInt();
        int k = sc.nextInt();
        
        int[] array = new int[n];
        for (int i = 0; i < array.length; i++) {
            array[i] = sc.nextInt();
        }
        
        Arrays.sort(array);
        
        int money = 0;
        for (int i = 0; i < k; i++) {
            money += array[i];
        }
        
        System.out.println(money);
    }
}
/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