import java.util.*;
public class Main{
    public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
        
        int H = sc.nextInt();
        int A = sc.nextInt();
        int cnt = 0;
        
        for(int i=0;i<(10*10*10*10);i++){
        	H -= A;
            cnt++;
            if(H<=0){
            	System.out.println(cnt);
                System.exit(0);
            }
        }
        //System.out.println(R);
    }
} import java.util.*; util.* java public class Main{
    public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
        
        int H = sc.nextInt();
        int A = sc.nextInt();
        int cnt = 0;
        
        for(int i=0;i<(10*10*10*10);i++){
        	H -= A;
            cnt++;
            if(H<=0){
            	System.out.println(cnt);
                System.exit(0);
            }
        }
        //System.out.println(R);
    }
} Main public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
        
        int H = sc.nextInt();
        int A = sc.nextInt();
        int cnt = 0;
        
        for(int i=0;i<(10*10*10*10);i++){
        	H -= A;
            cnt++;
            if(H<=0){
            	System.out.println(cnt);
                System.exit(0);
            }
        }
        //System.out.println(R);
    } main {
    	Scanner sc = new Scanner(System.in);
        
        int H = sc.nextInt();
        int A = sc.nextInt();
        int cnt = 0;
        
        for(int i=0;i<(10*10*10*10);i++){
        	H -= A;
            cnt++;
            if(H<=0){
            	System.out.println(cnt);
                System.exit(0);
            }
        }
        //System.out.println(R);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int H = sc.nextInt(); H sc.nextInt() sc.nextInt sc int A = sc.nextInt(); A sc.nextInt() sc.nextInt sc int cnt = 0; cnt 0 for(int i=0;i<(10*10*10*10);i++){
        	H -= A;
            cnt++;
            if(H<=0){
            	System.out.println(cnt);
                System.exit(0);
            }
        } int i=0; int i=0; i 0 i<(10*10*10*10) i (10*10*10*10) 10 10*10*10*10 10 10 10 10 i++ i++ i {
        	H -= A;
            cnt++;
            if(H<=0){
            	System.out.println(cnt);
                System.exit(0);
            }
        } {
        	H -= A;
            cnt++;
            if(H<=0){
            	System.out.println(cnt);
                System.exit(0);
            }
        } H -= A H A cnt++ cnt if(H<=0){
            	System.out.println(cnt);
                System.exit(0);
            } H<=0 H 0 {
            	System.out.println(cnt);
                System.exit(0);
            } System.out.println(cnt) System.out.println System.out System System.out cnt System.exit(0) System.exit System 0 String[] args args public class Main{
    public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
        
        int H = sc.nextInt();
        int A = sc.nextInt();
        int cnt = 0;
        
        for(int i=0;i<(10*10*10*10);i++){
        	H -= A;
            cnt++;
            if(H<=0){
            	System.out.println(cnt);
                System.exit(0);
            }
        }
        //System.out.println(R);
    }
} public class Main{
    public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
        
        int H = sc.nextInt();
        int A = sc.nextInt();
        int cnt = 0;
        
        for(int i=0;i<(10*10*10*10);i++){
        	H -= A;
            cnt++;
            if(H<=0){
            	System.out.println(cnt);
                System.exit(0);
            }
        }
        //System.out.println(R);
    }
} Main
import java.util.*;
public class Main{
    public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
        
        int H = sc.nextInt();
        int A = sc.nextInt();
        int cnt = 0;
        
        for(int i=0;i<(10*10*10*10);i++){
        	H -= A;
            cnt++;
            if(H<=0){
            	System.out.println(cnt);
                System.exit(0);
            }
        }
        //System.out.println(R);
    }
}