import java.util.*;
public class Main{
	public static void main(String[] args) {
		try{
			Scanner sc=new Scanner(System.in);
			int h,a,c=0;
			h=sc.nextInt();
			a=sc.nextInt();
			if((h<=0 || h>=10001) || (a<=0 || a>=10001))
			{
			 	System.out.println("EXit.....");
			}
			else
			{
				for(;;)
				{
					if(h<=0)
					{
						System.out.println(c);
						break;
					}
					else{
						h=h-a;
						c++;
					}
				}
			}
		}
		catch(Exception e)
		{
			System.out.println("Error");
		}
	}
} import java.util.*; util.* java public class Main{
	public static void main(String[] args) {
		try{
			Scanner sc=new Scanner(System.in);
			int h,a,c=0;
			h=sc.nextInt();
			a=sc.nextInt();
			if((h<=0 || h>=10001) || (a<=0 || a>=10001))
			{
			 	System.out.println("EXit.....");
			}
			else
			{
				for(;;)
				{
					if(h<=0)
					{
						System.out.println(c);
						break;
					}
					else{
						h=h-a;
						c++;
					}
				}
			}
		}
		catch(Exception e)
		{
			System.out.println("Error");
		}
	}
} Main public static void main(String[] args) {
		try{
			Scanner sc=new Scanner(System.in);
			int h,a,c=0;
			h=sc.nextInt();
			a=sc.nextInt();
			if((h<=0 || h>=10001) || (a<=0 || a>=10001))
			{
			 	System.out.println("EXit.....");
			}
			else
			{
				for(;;)
				{
					if(h<=0)
					{
						System.out.println(c);
						break;
					}
					else{
						h=h-a;
						c++;
					}
				}
			}
		}
		catch(Exception e)
		{
			System.out.println("Error");
		}
	} main {
		try{
			Scanner sc=new Scanner(System.in);
			int h,a,c=0;
			h=sc.nextInt();
			a=sc.nextInt();
			if((h<=0 || h>=10001) || (a<=0 || a>=10001))
			{
			 	System.out.println("EXit.....");
			}
			else
			{
				for(;;)
				{
					if(h<=0)
					{
						System.out.println(c);
						break;
					}
					else{
						h=h-a;
						c++;
					}
				}
			}
		}
		catch(Exception e)
		{
			System.out.println("Error");
		}
	} try{
			Scanner sc=new Scanner(System.in);
			int h,a,c=0;
			h=sc.nextInt();
			a=sc.nextInt();
			if((h<=0 || h>=10001) || (a<=0 || a>=10001))
			{
			 	System.out.println("EXit.....");
			}
			else
			{
				for(;;)
				{
					if(h<=0)
					{
						System.out.println(c);
						break;
					}
					else{
						h=h-a;
						c++;
					}
				}
			}
		}
		catch(Exception e)
		{
			System.out.println("Error");
		} catch(Exception e)
		{
			System.out.println("Error");
		} Exception e {
			System.out.println("Error");
		} System.out.println("Error") System.out.println System.out System System.out "Error" {
			Scanner sc=new Scanner(System.in);
			int h,a,c=0;
			h=sc.nextInt();
			a=sc.nextInt();
			if((h<=0 || h>=10001) || (a<=0 || a>=10001))
			{
			 	System.out.println("EXit.....");
			}
			else
			{
				for(;;)
				{
					if(h<=0)
					{
						System.out.println(c);
						break;
					}
					else{
						h=h-a;
						c++;
					}
				}
			}
		} Scanner sc=new Scanner(System.in); sc new Scanner(System.in) int h h a a c=0; c 0 h=sc.nextInt() h sc.nextInt() sc.nextInt sc a=sc.nextInt() a sc.nextInt() sc.nextInt sc if((h<=0 || h>=10001) || (a<=0 || a>=10001))
			{
			 	System.out.println("EXit.....");
			}
			else
			{
				for(;;)
				{
					if(h<=0)
					{
						System.out.println(c);
						break;
					}
					else{
						h=h-a;
						c++;
					}
				}
			} (h<=0 || h>=10001) || (a<=0 || a>=10001) (h<=0 || h>=10001) h<=0 h 0 h>=10001 h 10001 (a<=0 || a>=10001) a<=0 a 0 a>=10001 a 10001 {
			 	System.out.println("EXit.....");
			} System.out.println("EXit.....") System.out.println System.out System System.out "EXit....." {
				for(;;)
				{
					if(h<=0)
					{
						System.out.println(c);
						break;
					}
					else{
						h=h-a;
						c++;
					}
				}
			} for(;;)
				{
					if(h<=0)
					{
						System.out.println(c);
						break;
					}
					else{
						h=h-a;
						c++;
					}
				} ; {
					if(h<=0)
					{
						System.out.println(c);
						break;
					}
					else{
						h=h-a;
						c++;
					}
				} {
					if(h<=0)
					{
						System.out.println(c);
						break;
					}
					else{
						h=h-a;
						c++;
					}
				} if(h<=0)
					{
						System.out.println(c);
						break;
					}
					else{
						h=h-a;
						c++;
					} h<=0 h 0 {
						System.out.println(c);
						break;
					} System.out.println(c) System.out.println System.out System System.out c break; {
						h=h-a;
						c++;
					} h=h-a h h-a h a c++ c String[] args args public class Main{
	public static void main(String[] args) {
		try{
			Scanner sc=new Scanner(System.in);
			int h,a,c=0;
			h=sc.nextInt();
			a=sc.nextInt();
			if((h<=0 || h>=10001) || (a<=0 || a>=10001))
			{
			 	System.out.println("EXit.....");
			}
			else
			{
				for(;;)
				{
					if(h<=0)
					{
						System.out.println(c);
						break;
					}
					else{
						h=h-a;
						c++;
					}
				}
			}
		}
		catch(Exception e)
		{
			System.out.println("Error");
		}
	}
} public class Main{
	public static void main(String[] args) {
		try{
			Scanner sc=new Scanner(System.in);
			int h,a,c=0;
			h=sc.nextInt();
			a=sc.nextInt();
			if((h<=0 || h>=10001) || (a<=0 || a>=10001))
			{
			 	System.out.println("EXit.....");
			}
			else
			{
				for(;;)
				{
					if(h<=0)
					{
						System.out.println(c);
						break;
					}
					else{
						h=h-a;
						c++;
					}
				}
			}
		}
		catch(Exception e)
		{
			System.out.println("Error");
		}
	}
} Main
import java.util.*;
public class Main{
	public static void main(String[] args) {
		try{
			Scanner sc=new Scanner(System.in);
			int h,a,c=0;
			h=sc.nextInt();
			a=sc.nextInt();
			if((h<=0 || h>=10001) || (a<=0 || a>=10001))
			{
			 	System.out.println("EXit.....");
			}
			else
			{
				for(;;)
				{
					if(h<=0)
					{
						System.out.println(c);
						break;
					}
					else{
						h=h-a;
						c++;
					}
				}
			}
		}
		catch(Exception e)
		{
			System.out.println("Error");
		}
	}
}