import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.StringTokenizer;

public class Main {

    private static class FastReader {
        BufferedReader br;
        StringTokenizer st;

        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }

    public static void main(final String[] args) throws IOException {
        FastReader in = new FastReader();
        PrintWriter out = new PrintWriter(System.out, true);

        int n = in.nextInt();
        int k = in.nextInt();
        int[] p = new int[n];
        String[] tokens = in.nextLine().split(" ");
        for (int i = 0; i < n; i++) {
            p[i] = Integer.parseInt(tokens[i]);
        }

        Arrays.sort(p);

        int price = 0;
        for (int i = 0; i < k; i++) {
            price += p[i];
        }

        out.println(price);
    }
} import java.io.BufferedReader; BufferedReader java.io import java.io.IOException; IOException java.io import java.io.InputStreamReader; InputStreamReader java.io import java.io.PrintWriter; PrintWriter java.io import java.util.Arrays; Arrays java.util import java.util.StringTokenizer; StringTokenizer java.util public class Main {

    private static class FastReader {
        BufferedReader br;
        StringTokenizer st;

        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }

    public static void main(final String[] args) throws IOException {
        FastReader in = new FastReader();
        PrintWriter out = new PrintWriter(System.out, true);

        int n = in.nextInt();
        int k = in.nextInt();
        int[] p = new int[n];
        String[] tokens = in.nextLine().split(" ");
        for (int i = 0; i < n; i++) {
            p[i] = Integer.parseInt(tokens[i]);
        }

        Arrays.sort(p);

        int price = 0;
        for (int i = 0; i < k; i++) {
            price += p[i];
        }

        out.println(price);
    }
} Main public static void main(final String[] args) throws IOException {
        FastReader in = new FastReader();
        PrintWriter out = new PrintWriter(System.out, true);

        int n = in.nextInt();
        int k = in.nextInt();
        int[] p = new int[n];
        String[] tokens = in.nextLine().split(" ");
        for (int i = 0; i < n; i++) {
            p[i] = Integer.parseInt(tokens[i]);
        }

        Arrays.sort(p);

        int price = 0;
        for (int i = 0; i < k; i++) {
            price += p[i];
        }

        out.println(price);
    } main {
        FastReader in = new FastReader();
        PrintWriter out = new PrintWriter(System.out, true);

        int n = in.nextInt();
        int k = in.nextInt();
        int[] p = new int[n];
        String[] tokens = in.nextLine().split(" ");
        for (int i = 0; i < n; i++) {
            p[i] = Integer.parseInt(tokens[i]);
        }

        Arrays.sort(p);

        int price = 0;
        for (int i = 0; i < k; i++) {
            price += p[i];
        }

        out.println(price);
    } FastReader in = new FastReader(); in new FastReader() PrintWriter out = new PrintWriter(System.out, true); out new PrintWriter(System.out, true) int n = in.nextInt(); n in.nextInt() in.nextInt in int k = in.nextInt(); k in.nextInt() in.nextInt in int[] p = new int[n]; p new int[n] n String[] tokens = in.nextLine().split(" "); tokens in.nextLine().split(" ") in.nextLine().split in.nextLine() in.nextLine in " " for (int i = 0; i < n; i++) {
            p[i] = Integer.parseInt(tokens[i]);
        } int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
            p[i] = Integer.parseInt(tokens[i]);
        } {
            p[i] = Integer.parseInt(tokens[i]);
        } p[i] = Integer.parseInt(tokens[i]) p[i] p i Integer.parseInt(tokens[i]) Integer.parseInt Integer tokens[i] tokens i Arrays.sort(p) Arrays.sort Arrays p int price = 0; price 0 for (int i = 0; i < k; i++) {
            price += p[i];
        } int i = 0; int i = 0; i 0 i < k i k i++ i++ i {
            price += p[i];
        } {
            price += p[i];
        } price += p[i] price p[i] p i out.println(price) out.println out price final String[] args args private static class FastReader {
        BufferedReader br;
        StringTokenizer st;

        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    } FastReader BufferedReader br; br StringTokenizer st; st public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        } FastReader {
            br = new BufferedReader(new InputStreamReader(System.in));
        } br = new BufferedReader(new InputStreamReader(System.in)) br new BufferedReader(new InputStreamReader(System.in)) String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        } next {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        } while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            } st == null || !st.hasMoreElements() st == null st null !st.hasMoreElements() st.hasMoreElements() st.hasMoreElements st {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            } try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                } IOException e {
                    e.printStackTrace();
                } e.printStackTrace() e.printStackTrace e {
                    st = new StringTokenizer(br.readLine());
                } st = new StringTokenizer(br.readLine()) st new StringTokenizer(br.readLine()) return st.nextToken(); st.nextToken() st.nextToken st int nextInt() {
            return Integer.parseInt(next());
        } nextInt {
            return Integer.parseInt(next());
        } return Integer.parseInt(next()); Integer.parseInt(next()) Integer.parseInt Integer next() next long nextLong() {
            return Long.parseLong(next());
        } nextLong {
            return Long.parseLong(next());
        } return Long.parseLong(next()); Long.parseLong(next()) Long.parseLong Long next() next double nextDouble() {
            return Double.parseDouble(next());
        } nextDouble {
            return Double.parseDouble(next());
        } return Double.parseDouble(next()); Double.parseDouble(next()) Double.parseDouble Double next() next String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        } nextLine {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        } String str = ""; str "" try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            } IOException e {
                e.printStackTrace();
            } e.printStackTrace() e.printStackTrace e {
                str = br.readLine();
            } str = br.readLine() str br.readLine() br.readLine br return str; str public class Main {

    private static class FastReader {
        BufferedReader br;
        StringTokenizer st;

        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }

    public static void main(final String[] args) throws IOException {
        FastReader in = new FastReader();
        PrintWriter out = new PrintWriter(System.out, true);

        int n = in.nextInt();
        int k = in.nextInt();
        int[] p = new int[n];
        String[] tokens = in.nextLine().split(" ");
        for (int i = 0; i < n; i++) {
            p[i] = Integer.parseInt(tokens[i]);
        }

        Arrays.sort(p);

        int price = 0;
        for (int i = 0; i < k; i++) {
            price += p[i];
        }

        out.println(price);
    }
} public class Main {

    private static class FastReader {
        BufferedReader br;
        StringTokenizer st;

        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }

    public static void main(final String[] args) throws IOException {
        FastReader in = new FastReader();
        PrintWriter out = new PrintWriter(System.out, true);

        int n = in.nextInt();
        int k = in.nextInt();
        int[] p = new int[n];
        String[] tokens = in.nextLine().split(" ");
        for (int i = 0; i < n; i++) {
            p[i] = Integer.parseInt(tokens[i]);
        }

        Arrays.sort(p);

        int price = 0;
        for (int i = 0; i < k; i++) {
            price += p[i];
        }

        out.println(price);
    }
} Main
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.StringTokenizer;

public class Main {

    private static class FastReader {
        BufferedReader br;
        StringTokenizer st;

        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }

    public static void main(final String[] args) throws IOException {
        FastReader in = new FastReader();
        PrintWriter out = new PrintWriter(System.out, true);

        int n = in.nextInt();
        int k = in.nextInt();
        int[] p = new int[n];
        String[] tokens = in.nextLine().split(" ");
        for (int i = 0; i < n; i++) {
            p[i] = Integer.parseInt(tokens[i]);
        }

        Arrays.sort(p);

        int price = 0;
        for (int i = 0; i < k; i++) {
            price += p[i];
        }

        out.println(price);
    }
}
