import java.util.PriorityQueue;
import java.util.Scanner;

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

		// 入力値の取得
		int N = sc.nextInt();
		int K = sc.nextInt();
		
		PriorityQueue<Integer> P = new PriorityQueue<>();
		for (int i = 0; i < N; i++) {
			P.add(sc.nextInt());
		}
		
		// 結果の出力
		int sum = 0;
		for (int i = 0; i < K; i++) {
			sum += P.poll();
		}
		System.out.println(sum);
		
		sc.close();
	}
} import java.util.PriorityQueue; PriorityQueue java.util import java.util.Scanner; Scanner java.util public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		// 入力値の取得
		int N = sc.nextInt();
		int K = sc.nextInt();
		
		PriorityQueue<Integer> P = new PriorityQueue<>();
		for (int i = 0; i < N; i++) {
			P.add(sc.nextInt());
		}
		
		// 結果の出力
		int sum = 0;
		for (int i = 0; i < K; i++) {
			sum += P.poll();
		}
		System.out.println(sum);
		
		sc.close();
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		// 入力値の取得
		int N = sc.nextInt();
		int K = sc.nextInt();
		
		PriorityQueue<Integer> P = new PriorityQueue<>();
		for (int i = 0; i < N; i++) {
			P.add(sc.nextInt());
		}
		
		// 結果の出力
		int sum = 0;
		for (int i = 0; i < K; i++) {
			sum += P.poll();
		}
		System.out.println(sum);
		
		sc.close();
	} main {
		Scanner sc = new Scanner(System.in);

		// 入力値の取得
		int N = sc.nextInt();
		int K = sc.nextInt();
		
		PriorityQueue<Integer> P = new PriorityQueue<>();
		for (int i = 0; i < N; i++) {
			P.add(sc.nextInt());
		}
		
		// 結果の出力
		int sum = 0;
		for (int i = 0; i < K; i++) {
			sum += P.poll();
		}
		System.out.println(sum);
		
		sc.close();
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int N = sc.nextInt(); N sc.nextInt() sc.nextInt sc int K = sc.nextInt(); K sc.nextInt() sc.nextInt sc PriorityQueue<Integer> P = new PriorityQueue<>(); P new PriorityQueue<>() for (int i = 0; i < N; i++) {
			P.add(sc.nextInt());
		} int i = 0; int i = 0; i 0 i < N i N i++ i++ i {
			P.add(sc.nextInt());
		} {
			P.add(sc.nextInt());
		} P.add(sc.nextInt()) P.add P sc.nextInt() sc.nextInt sc int sum = 0; sum 0 for (int i = 0; i < K; i++) {
			sum += P.poll();
		} int i = 0; int i = 0; i 0 i < K i K i++ i++ i {
			sum += P.poll();
		} {
			sum += P.poll();
		} sum += P.poll() sum P.poll() P.poll P System.out.println(sum) System.out.println System.out System System.out sum sc.close() sc.close sc String[] args args public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		// 入力値の取得
		int N = sc.nextInt();
		int K = sc.nextInt();
		
		PriorityQueue<Integer> P = new PriorityQueue<>();
		for (int i = 0; i < N; i++) {
			P.add(sc.nextInt());
		}
		
		// 結果の出力
		int sum = 0;
		for (int i = 0; i < K; i++) {
			sum += P.poll();
		}
		System.out.println(sum);
		
		sc.close();
	}
} public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		// 入力値の取得
		int N = sc.nextInt();
		int K = sc.nextInt();
		
		PriorityQueue<Integer> P = new PriorityQueue<>();
		for (int i = 0; i < N; i++) {
			P.add(sc.nextInt());
		}
		
		// 結果の出力
		int sum = 0;
		for (int i = 0; i < K; i++) {
			sum += P.poll();
		}
		System.out.println(sum);
		
		sc.close();
	}
} Main
import java.util.PriorityQueue;
import java.util.Scanner;

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

		// 入力値の取得
		int N = sc.nextInt();
		int K = sc.nextInt();
		
		PriorityQueue<Integer> P = new PriorityQueue<>();
		for (int i = 0; i < N; i++) {
			P.add(sc.nextInt());
		}
		
		// 結果の出力
		int sum = 0;
		for (int i = 0; i < K; i++) {
			sum += P.poll();
		}
		System.out.println(sum);
		
		sc.close();
	}
}
