import java.util.*;
class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n, k,i,tmp,j,sum=0;

        n = sc.nextInt();
        k = sc.nextInt();

        int p[] = new int[n];

        for (i = 0; i < n; i++) {
            p[i] = sc.nextInt();
        }

        for (i = 0; i < n - 1; i++) {
            for (j = i + 1; j < n; j++) {
                if (p[i] > p[j]) {
                    tmp = p[i];
                    p[i] = p[j];
                    p[j] = tmp;
                }
            }
        }
        for (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