import java.util.Scanner; // 注意类名必须为 Main, 不要有任何 package xxx 信息 public class Main { private static final int BASE = 9; public static void main(String[] args) { Scanner in = new Scanner(System.in); while (in.hasNext()) { int m = in.nextInt(); int n = in.nextInt(); // 1 if(1<=m&&m<=BASE && 1<=n&&n<=BASE){ System.out.println(0); }else{ System.out.println(-1); } // 2 int x1 = in.nextInt(); int y1 = in.nextInt(); int x2 = in.nextInt(); int y2 = in.nextInt(); if(0<=x1&&x1<m && 0<=y1&&y1<n && 0<=x2&&x2<m && 0<=y2&&y2<n){ System.out.println(0); }else{ System.out.println(-1); } // 3 int x = in.nextInt(); if(m<BASE && 0<=x&&x<m){ System.out.println(0); }else{ System.out.println(-1); } // 4 int y = in.nextInt(); if(n<BASE && 0<=y&&y<n){ System.out.println(0); }else{ System.out.println(-1); } // 5 int indexX = in.nextInt(); int indexY = in.nextInt(); if(0<=indexX&&indexX<m && 0<=indexY&&indexY<n){ System.out.println(0); }else{ System.out.println(-1); } } } }