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

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int n = Integer.parseInt(sc.next());
		int k = Integer.parseInt(sc.next());

		int[] array = new int[n];
		for (int i = 0; i < n; i++)
			array[i] = Integer.parseInt(sc.next());
		Arrays.sort(array);
		
		int sum = 0;
		for(int i = 0; i < k; i++)
			sum += array[i];
		
		System.out.println(sum);
	}

} import java.util.Arrays; Arrays java.util import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int n = Integer.parseInt(sc.next());
		int k = Integer.parseInt(sc.next());

		int[] array = new int[n];
		for (int i = 0; i < n; i++)
			array[i] = Integer.parseInt(sc.next());
		Arrays.sort(array);
		
		int sum = 0;
		for(int i = 0; i < k; i++)
			sum += array[i];
		
		System.out.println(sum);
	}

} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int n = Integer.parseInt(sc.next());
		int k = Integer.parseInt(sc.next());

		int[] array = new int[n];
		for (int i = 0; i < n; i++)
			array[i] = Integer.parseInt(sc.next());
		Arrays.sort(array);
		
		int sum = 0;
		for(int i = 0; i < k; i++)
			sum += array[i];
		
		System.out.println(sum);
	} main {
		Scanner sc = new Scanner(System.in);

		int n = Integer.parseInt(sc.next());
		int k = Integer.parseInt(sc.next());

		int[] array = new int[n];
		for (int i = 0; i < n; i++)
			array[i] = Integer.parseInt(sc.next());
		Arrays.sort(array);
		
		int sum = 0;
		for(int i = 0; i < k; i++)
			sum += array[i];
		
		System.out.println(sum);
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = Integer.parseInt(sc.next()); n Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc int k = Integer.parseInt(sc.next()); k Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc int[] array = new int[n]; array new int[n] n for (int i = 0; i < n; i++)
			array[i] = Integer.parseInt(sc.next()); int i = 0; int i = 0; i 0 i < n i n i++ i++ i array[i] = Integer.parseInt(sc.next()); array[i] = Integer.parseInt(sc.next()) array[i] array i Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc Arrays.sort(array) Arrays.sort Arrays array int sum = 0; sum 0 for(int i = 0; i < k; i++)
			sum += array[i]; int i = 0; int i = 0; i 0 i < k i k i++ i++ i sum += array[i]; sum += array[i] sum array[i] array i System.out.println(sum) System.out.println System.out System System.out sum String[] args args public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int n = Integer.parseInt(sc.next());
		int k = Integer.parseInt(sc.next());

		int[] array = new int[n];
		for (int i = 0; i < n; i++)
			array[i] = Integer.parseInt(sc.next());
		Arrays.sort(array);
		
		int sum = 0;
		for(int i = 0; i < k; i++)
			sum += array[i];
		
		System.out.println(sum);
	}

} public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int n = Integer.parseInt(sc.next());
		int k = Integer.parseInt(sc.next());

		int[] array = new int[n];
		for (int i = 0; i < n; i++)
			array[i] = Integer.parseInt(sc.next());
		Arrays.sort(array);
		
		int sum = 0;
		for(int i = 0; i < k; i++)
			sum += array[i];
		
		System.out.println(sum);
	}

} Main
import java.util.Arrays;
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int n = Integer.parseInt(sc.next());
		int k = Integer.parseInt(sc.next());

		int[] array = new int[n];
		for (int i = 0; i < n; i++)
			array[i] = Integer.parseInt(sc.next());
		Arrays.sort(array);
		
		int sum = 0;
		for(int i = 0; i < k; i++)
			sum += array[i];
		
		System.out.println(sum);
	}

}
