import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        Scanner entrada = new Scanner(System.in);
        int tipos = entrada.nextInt();
        int eleccion = entrada.nextInt();
        ArrayList<Integer> listaPrecios = new ArrayList<Integer>();
        for (int i = 0; i < tipos; i++) {
            int valor = entrada.nextInt();
            listaPrecios.add(valor);
        }
        int sumaMin = 0;
        for (int i = 0; i < eleccion; i++) {
            int min = Collections.min(listaPrecios);
            sumaMin += min;
            int index = listaPrecios.indexOf(min);
            listaPrecios.remove(index);
        }
        System.out.println(sumaMin);
    }
}
/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