package com.company;

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        int numerator1, numerator2, denominator1, denominator2;
        Scanner in = new Scanner(System.in);
        numerator1 = in.nextInt();
        numerator2 = in.nextInt();
        denominator1 = in.nextInt();
        denominator2 = in.nextInt();
        int result1 = numerator1/denominator1;
        int result2 = numerator2/denominator2;

        if ( result1 < result2 ){
            System.out.println("-1");
        }
        else if ( result1 > result2 ){
            System.out.println("1");
        }
        else System.out.println("0");


    }
}