BAEKJOON 11758

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class Main {
	public static void main(String[] args) throws Exception{
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st;
		st = new StringTokenizer(br.readLine());
		int x1 = Integer.parseInt(st.nextToken());
		int y1 = Integer.parseInt(st.nextToken());
		st = new StringTokenizer(br.readLine());
		int x2 = Integer.parseInt(st.nextToken());
		int y2 = Integer.parseInt(st.nextToken());
		st = new StringTokenizer(br.readLine());
		int x3 = Integer.parseInt(st.nextToken());
		int y3 = Integer.parseInt(st.nextToken());
		int a = x1 * y2 + x2 * y3 + x3 * y1;
		int b = y1 * x2 + y2 * x3 + y3 * x1;
		if(a-b > 0)
			System.out.println(1);
		else if(a-b < 0)
			System.out.println(-1);
		else
			System.out.println(0);
	}
}