import java.util.Scanner;
public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int k = sc.nextInt();
        int[] p = new int[n];
        for(int i = 1 ; i <= n ; i++ ){
            p[i - 1] = sc.nextInt(); 
        }
        for(int i = 1; i <= n ; i++ ){
            for(int j = 0 ; j < n - 1 ; j++ ){
                if(p[j] > p[j + 1]){
                    int ko = p[j];
                    p[j] = p[j + 1];
                    p[j + 1] = ko;
                }
            }
        }
        int s = 0;
        for(int i = 0 ; i < k ; i++ ){
            s = s + p[i];
        }
        System.out.println(s);
    }
}
/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