import java.io.*;

import java.math.BigInteger;
import java.util.*;

import java.util.ArrayList;

import java.util.Scanner;


 class Main {

    /*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;
        }
    }

    static final int mod = 1000000007;

    public static int gcd(int a, int b)
    {
        if (a == 0)
            return b;
        return gcd(b % a, a);
    }
    public static boolean isPalindrome(String str)
    {

        // Pointers pointing to the beginning
        // and the end of the string
        int i = 0, j = str.length() - 1;

        // While there are characters toc compare
        while (i < j) {

            // If there is a mismatch
            if (str.charAt(i) != str.charAt(j))
                return false;

            // Increment first pointer and
            // decrement the other
            i++;
            j--;
        }

        // Given string is a palindrome
        return true;
    }*/

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

            int h=sc.nextInt();
            int d=sc.nextInt();
            System.out.println((int)Math.ceil((double)h/d));
        }
    }

 import java.io.*; io.* java import java.math.BigInteger; BigInteger java.math import java.util.*; util.* java import java.util.ArrayList; ArrayList java.util import java.util.Scanner; Scanner java.util class Main {

    /*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;
        }
    }

    static final int mod = 1000000007;

    public static int gcd(int a, int b)
    {
        if (a == 0)
            return b;
        return gcd(b % a, a);
    }
    public static boolean isPalindrome(String str)
    {

        // Pointers pointing to the beginning
        // and the end of the string
        int i = 0, j = str.length() - 1;

        // While there are characters toc compare
        while (i < j) {

            // If there is a mismatch
            if (str.charAt(i) != str.charAt(j))
                return false;

            // Increment first pointer and
            // decrement the other
            i++;
            j--;
        }

        // Given string is a palindrome
        return true;
    }*/

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

            int h=sc.nextInt();
            int d=sc.nextInt();
            System.out.println((int)Math.ceil((double)h/d));
        }
    } Main public static void main(String[] args)
        {
            Scanner sc=new Scanner(System.in);

            int h=sc.nextInt();
            int d=sc.nextInt();
            System.out.println((int)Math.ceil((double)h/d));
        } main {
            Scanner sc=new Scanner(System.in);

            int h=sc.nextInt();
            int d=sc.nextInt();
            System.out.println((int)Math.ceil((double)h/d));
        } Scanner sc=new Scanner(System.in); sc new Scanner(System.in) int h=sc.nextInt(); h sc.nextInt() sc.nextInt sc int d=sc.nextInt(); d sc.nextInt() sc.nextInt sc System.out.println((int)Math.ceil((double)h/d)) System.out.println System.out System System.out (int)Math.ceil((double)h/d) Math.ceil Math (double)h/d (double)h d String[] args args
import java.io.*;

import java.math.BigInteger;
import java.util.*;

import java.util.ArrayList;

import java.util.Scanner;


 class Main {

    /*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;
        }
    }

    static final int mod = 1000000007;

    public static int gcd(int a, int b)
    {
        if (a == 0)
            return b;
        return gcd(b % a, a);
    }
    public static boolean isPalindrome(String str)
    {

        // Pointers pointing to the beginning
        // and the end of the string
        int i = 0, j = str.length() - 1;

        // While there are characters toc compare
        while (i < j) {

            // If there is a mismatch
            if (str.charAt(i) != str.charAt(j))
                return false;

            // Increment first pointer and
            // decrement the other
            i++;
            j--;
        }

        // Given string is a palindrome
        return true;
    }*/

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

            int h=sc.nextInt();
            int d=sc.nextInt();
            System.out.println((int)Math.ceil((double)h/d));
        }
    }


