import java.util.Scanner;
import java.util.Arrays;
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();
		}
		Arrays.sort(p);
		int sum = 0;
		for(int i=0; i<k; i++){
			sum += p[i];
		}
		System.out.println(sum);
	}
} import java.util.Scanner; Scanner java.util import java.util.Arrays; Arrays 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();
		}
		Arrays.sort(p);
		int sum = 0;
		for(int i=0; i<k; i++){
			sum += p[i];
		}
		System.out.println(sum);
	}
} 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();
		}
		Arrays.sort(p);
		int sum = 0;
		for(int i=0; i<k; i++){
			sum += p[i];
		}
		System.out.println(sum);
	} main {
		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();
		}
		Arrays.sort(p);
		int sum = 0;
		for(int i=0; i<k; i++){
			sum += p[i];
		}
		System.out.println(sum);
	} Scanner scan = new Scanner(System.in); scan new Scanner(System.in) int n = scan.nextInt(); n scan.nextInt() scan.nextInt scan int k = scan.nextInt(); k scan.nextInt() scan.nextInt scan int[] p = new int[n]; p new int[n] n for(int i=0; i<n; i++){
			p[i] = scan.nextInt();
		} int i=0; int i=0; i 0 i<n i n i++ i++ i {
			p[i] = scan.nextInt();
		} {
			p[i] = scan.nextInt();
		} p[i] = scan.nextInt() p[i] p i scan.nextInt() scan.nextInt scan Arrays.sort(p) Arrays.sort Arrays p int sum = 0; sum 0 for(int i=0; i<k; i++){
			sum += p[i];
		} int i=0; int i=0; i 0 i<k i k i++ i++ i {
			sum += p[i];
		} {
			sum += p[i];
		} sum += p[i] sum p[i] p 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 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();
		}
		Arrays.sort(p);
		int sum = 0;
		for(int i=0; i<k; i++){
			sum += p[i];
		}
		System.out.println(sum);
	}
} 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();
		}
		Arrays.sort(p);
		int sum = 0;
		for(int i=0; i<k; i++){
			sum += p[i];
		}
		System.out.println(sum);
	}
} Main
import java.util.Scanner;
import java.util.Arrays;
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();
		}
		Arrays.sort(p);
		int sum = 0;
		for(int i=0; i<k; i++){
			sum += p[i];
		}
		System.out.println(sum);
	}
}
