import java.util.*;
import java.lang.*;
import java.io.*;
 
class Main
{
	public static void main (String[] args) 
	{
		Scanner sc = new Scanner(System. in );
        long a = sc.nextInt(); 
        long b = sc.nextInt(); 
        if(b != 0) System.out.print(a/b);
        else System.out.print("ERROR");
	}
}