import java.util.*;
import java.lang.*;
 import java.math.BigInteger;
 
public class Main {
    public static void main(String[] args) {

        Scanner sc  = new Scanner(System.in); 

        String s1 = sc.next();
        String s2 = sc.next();
        
        BigInteger a = new BigInteger(s1); 
        BigInteger b = new BigInteger(s2); 
        BigInteger c = new BigInteger("1");

        System.out.println(  a.divide(  b.add(c)).add(c)  );
        
        
        

    
        
    


        System.out.println();
    }

}