import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.math.BigDecimal;

public class Main{
	public static void main(String[] args) throws IOException {
		try (BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in))) {

			String in = br.readLine();
			String chr[] = in.split(" ");
			BigDecimal h = new BigDecimal(chr[0]);
			BigDecimal a = new BigDecimal(chr[1]);

			BigDecimal div = h.divide(a, BigDecimal.ROUND_UP);
			 System.out.println(div);
		}
	}
} import java.io.BufferedReader; BufferedReader java.io import java.io.IOException; IOException java.io import java.io.InputStreamReader; InputStreamReader java.io import java.math.BigDecimal; BigDecimal java.math public class Main{
	public static void main(String[] args) throws IOException {
		try (BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in))) {

			String in = br.readLine();
			String chr[] = in.split(" ");
			BigDecimal h = new BigDecimal(chr[0]);
			BigDecimal a = new BigDecimal(chr[1]);

			BigDecimal div = h.divide(a, BigDecimal.ROUND_UP);
			 System.out.println(div);
		}
	}
} Main public static void main(String[] args) throws IOException {
		try (BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in))) {

			String in = br.readLine();
			String chr[] = in.split(" ");
			BigDecimal h = new BigDecimal(chr[0]);
			BigDecimal a = new BigDecimal(chr[1]);

			BigDecimal div = h.divide(a, BigDecimal.ROUND_UP);
			 System.out.println(div);
		}
	} main {
		try (BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in))) {

			String in = br.readLine();
			String chr[] = in.split(" ");
			BigDecimal h = new BigDecimal(chr[0]);
			BigDecimal a = new BigDecimal(chr[1]);

			BigDecimal div = h.divide(a, BigDecimal.ROUND_UP);
			 System.out.println(div);
		}
	} try (BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in))) {

			String in = br.readLine();
			String chr[] = in.split(" ");
			BigDecimal h = new BigDecimal(chr[0]);
			BigDecimal a = new BigDecimal(chr[1]);

			BigDecimal div = h.divide(a, BigDecimal.ROUND_UP);
			 System.out.println(div);
		} {

			String in = br.readLine();
			String chr[] = in.split(" ");
			BigDecimal h = new BigDecimal(chr[0]);
			BigDecimal a = new BigDecimal(chr[1]);

			BigDecimal div = h.divide(a, BigDecimal.ROUND_UP);
			 System.out.println(div);
		} BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in)) BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in)) new BufferedReader(
				new InputStreamReader(System.in)) String in = br.readLine(); in br.readLine() br.readLine br String chr[] = in.split(" "); chr in.split(" ") in.split in " " BigDecimal h = new BigDecimal(chr[0]); h new BigDecimal(chr[0]) BigDecimal a = new BigDecimal(chr[1]); a new BigDecimal(chr[1]) BigDecimal div = h.divide(a, BigDecimal.ROUND_UP); div h.divide(a, BigDecimal.ROUND_UP) h.divide h a BigDecimal.ROUND_UP BigDecimal BigDecimal.ROUND_UP System.out.println(div) System.out.println System.out System System.out div String[] args args public class Main{
	public static void main(String[] args) throws IOException {
		try (BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in))) {

			String in = br.readLine();
			String chr[] = in.split(" ");
			BigDecimal h = new BigDecimal(chr[0]);
			BigDecimal a = new BigDecimal(chr[1]);

			BigDecimal div = h.divide(a, BigDecimal.ROUND_UP);
			 System.out.println(div);
		}
	}
} public class Main{
	public static void main(String[] args) throws IOException {
		try (BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in))) {

			String in = br.readLine();
			String chr[] = in.split(" ");
			BigDecimal h = new BigDecimal(chr[0]);
			BigDecimal a = new BigDecimal(chr[1]);

			BigDecimal div = h.divide(a, BigDecimal.ROUND_UP);
			 System.out.println(div);
		}
	}
} Main
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.math.BigDecimal;

public class Main{
	public static void main(String[] args) throws IOException {
		try (BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in))) {

			String in = br.readLine();
			String chr[] = in.split(" ");
			BigDecimal h = new BigDecimal(chr[0]);
			BigDecimal a = new BigDecimal(chr[1]);

			BigDecimal div = h.divide(a, BigDecimal.ROUND_UP);
			 System.out.println(div);
		}
	}
}