import java.util.Scanner;
public class Main {
	public static void main (String args[]) {
		Scanner lector=new Scanner (System.in);
		int m=0;
		double H=lector.nextDouble();
		double A=lector.nextDouble();
		do {
			m++;
			H=( H-A);
		} while (H>0);
		System.out.print (m);
     }
} import java.util.Scanner; Scanner java.util public class Main {
	public static void main (String args[]) {
		Scanner lector=new Scanner (System.in);
		int m=0;
		double H=lector.nextDouble();
		double A=lector.nextDouble();
		do {
			m++;
			H=( H-A);
		} while (H>0);
		System.out.print (m);
     }
} Main public static void main (String args[]) {
		Scanner lector=new Scanner (System.in);
		int m=0;
		double H=lector.nextDouble();
		double A=lector.nextDouble();
		do {
			m++;
			H=( H-A);
		} while (H>0);
		System.out.print (m);
     } main {
		Scanner lector=new Scanner (System.in);
		int m=0;
		double H=lector.nextDouble();
		double A=lector.nextDouble();
		do {
			m++;
			H=( H-A);
		} while (H>0);
		System.out.print (m);
     } Scanner lector=new Scanner (System.in); lector new Scanner (System.in) int m=0; m 0 double H=lector.nextDouble(); H lector.nextDouble() lector.nextDouble lector double A=lector.nextDouble(); A lector.nextDouble() lector.nextDouble lector do {
			m++;
			H=( H-A);
		} while (H>0); H>0 H 0 {
			m++;
			H=( H-A);
		} m++ m H=( H-A) H ( H-A) H A System.out.print (m) System.out.print System.out System System.out m String args[] args public class Main {
	public static void main (String args[]) {
		Scanner lector=new Scanner (System.in);
		int m=0;
		double H=lector.nextDouble();
		double A=lector.nextDouble();
		do {
			m++;
			H=( H-A);
		} while (H>0);
		System.out.print (m);
     }
} public class Main {
	public static void main (String args[]) {
		Scanner lector=new Scanner (System.in);
		int m=0;
		double H=lector.nextDouble();
		double A=lector.nextDouble();
		do {
			m++;
			H=( H-A);
		} while (H>0);
		System.out.print (m);
     }
} Main
import java.util.Scanner;
public class Main {
	public static void main (String args[]) {
		Scanner lector=new Scanner (System.in);
		int m=0;
		double H=lector.nextDouble();
		double A=lector.nextDouble();
		do {
			m++;
			H=( H-A);
		} while (H>0);
		System.out.print (m);
     }
}
