import java.util.*;

public class Main{
public static void main(String[] args) {
    Scanner scan = new Scanner(System.in);
    int N = scan.nextInt();
    int K = scan.nextInt();
    int []p = new int[N];
    for(int i=0;i<N;i++) {
        p[i] = scan.nextInt();
    }
    scan.close();

    Arrays.sort(p);

    int sum = 0;
    for(int i=0;i<K;i++) {
        sum += p[i];
    }

    System.out.println(sum);
}
}

/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