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

public class Main {
    public static void main(String[] var0) {
        Scanner scanner = new Scanner(System.in);

        int N = scanner.nextInt();
        int K = scanner.nextInt();

        int[] p = new int[N];

        for (int i = 0; i < N; i++) {
            p[i] = scanner.nextInt();
        }

        Arrays.sort(p);

        int ans = 0;

        for (int i = 0; i < K; i++) {
            ans += p[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