import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Scanner;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        ABC153_a solver = new ABC153_a();
        solver.solve(1, in, out);
        out.close();
    }

    static class ABC153_a {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int H = in.nextInt();
            int A = in.nextInt();
            out.println((int) Math.floor(H / A) + ((H % A != 0) ? 1 : 0));
        }

    }
}
 import java.io.OutputStream; OutputStream java.io import java.io.IOException; IOException java.io import java.io.InputStream; InputStream java.io import java.io.PrintWriter; PrintWriter java.io import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        ABC153_a solver = new ABC153_a();
        solver.solve(1, in, out);
        out.close();
    }

    static class ABC153_a {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int H = in.nextInt();
            int A = in.nextInt();
            out.println((int) Math.floor(H / A) + ((H % A != 0) ? 1 : 0));
        }

    }
} Main public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        ABC153_a solver = new ABC153_a();
        solver.solve(1, in, out);
        out.close();
    } main {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        ABC153_a solver = new ABC153_a();
        solver.solve(1, in, out);
        out.close();
    } InputStream inputStream = System.in; inputStream System.in System System.in OutputStream outputStream = System.out; outputStream System.out System System.out Scanner in = new Scanner(inputStream); in new Scanner(inputStream) PrintWriter out = new PrintWriter(outputStream); out new PrintWriter(outputStream) ABC153_a solver = new ABC153_a(); solver new ABC153_a() solver.solve(1, in, out) solver.solve solver 1 in out out.close() out.close out String[] args args static class ABC153_a {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int H = in.nextInt();
            int A = in.nextInt();
            out.println((int) Math.floor(H / A) + ((H % A != 0) ? 1 : 0));
        }

    } ABC153_a public void solve(int testNumber, Scanner in, PrintWriter out) {
            int H = in.nextInt();
            int A = in.nextInt();
            out.println((int) Math.floor(H / A) + ((H % A != 0) ? 1 : 0));
        } solve {
            int H = in.nextInt();
            int A = in.nextInt();
            out.println((int) Math.floor(H / A) + ((H % A != 0) ? 1 : 0));
        } int H = in.nextInt(); H in.nextInt() in.nextInt in int A = in.nextInt(); A in.nextInt() in.nextInt in out.println((int) Math.floor(H / A) + ((H % A != 0) ? 1 : 0)) out.println out (int) Math.floor(H / A) + ((H % A != 0) ? 1 : 0) (int) Math.floor(H / A) Math.floor Math H / A H A ((H % A != 0) ? 1 : 0) (H % A != 0) H % A H A 0 1 0 int testNumber testNumber Scanner in in PrintWriter out out public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        ABC153_a solver = new ABC153_a();
        solver.solve(1, in, out);
        out.close();
    }

    static class ABC153_a {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int H = in.nextInt();
            int A = in.nextInt();
            out.println((int) Math.floor(H / A) + ((H % A != 0) ? 1 : 0));
        }

    }
} public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        ABC153_a solver = new ABC153_a();
        solver.solve(1, in, out);
        out.close();
    }

    static class ABC153_a {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int H = in.nextInt();
            int A = in.nextInt();
            out.println((int) Math.floor(H / A) + ((H % A != 0) ? 1 : 0));
        }

    }
} Main
import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Scanner;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        ABC153_a solver = new ABC153_a();
        solver.solve(1, in, out);
        out.close();
    }

    static class ABC153_a {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int H = in.nextInt();
            int A = in.nextInt();
            out.println((int) Math.floor(H / A) + ((H % A != 0) ? 1 : 0));
        }

    }
}

