Division of Big Integers

Given two integers $A$ and $B$, compute the quotient, $\frac{A}{B}$. Round down to the nearest decimal.

Input

Two integers $A$ and $B$ separated by a space character are given in a line.

Output

Print the quotient in a line.

Constraints

* $-1 \times 10^{1000} \leq A, B \leq 10^{1000}$
* $B \ne 0$



Sample Input 1


5 8


Sample Output 1


0


Sample Input 2


100 25


Sample Output 2


4


Sample Input 3


-1 3


Sample Output 3


0


Sample Input 4


12 -3


Sample Output 4


-4






Example

Input

5 8


Output

0
import java.util.*;
import java.io.*;
import java.math.*;

public class Main {
    public static void main(String[] args){
        Scanner sc=new Scanner(System.in);
        String str=sc.next();
        BigInteger a=new BigInteger(str);
        str=sc.next();
        BigInteger b=new BigInteger(str);
        System.out.println(a.divide(b));
    }
}

