import java.util.Arrays;
import java.util.Scanner;

public class Main {
    public static void main(String[] args)
    {
        Scanner scanner = new Scanner(System.in);
        int N = scanner.nextInt();
        int K = scanner.nextInt();
        int[] fruits = new int[N];
        for(int i=0;i<N;i++)
            fruits[i] = scanner.nextInt();
        Arrays.sort(fruits);
        int total = 0;
        for(int i=0;i<K;i++)
            total += fruits[i];
        System.out.println(total);
    }
}

/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