import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        long a = sc.nextLong();
        long b = sc.nextLong();
        long ans = 0;
        if(a>b)
        {
            if(a%b!=0)
            {
                ans = a / b + 1;
            }
            else
            {
                ans = a / b;
            }
        }
        else if(a<=b)
        {
            if(a%b!=0)
            {
                ans = b / a + 1;
            }
            else
            {
                ans = b / a;
            }
        }
        System.out.println(ans);
        
    }
}