#题干复杂,编程简单 #注意不要越界即可 while True: try: m, n = map(int, input().split()) if m <= 9 and m > 0 and n <= 9 and n > 0: print(0) else: print(-1) x1, y1, x2, y2 = map(int, input().split()) if x1 >= 0 and y1 >= 0 and x2 >= 0 and y2 >= 0 and x1 < m and x2 < m and y1 < n and y2 < n: print(0) else: print(-1) x = int(input()) if x >= 0 and x < m and m + 1 <= 9: print(0) else: print(-1) y = int(input()) if y >= 0 and y < n and n + 1 <= 9: print(0) else: print(-1) x, y = map(int, input().split()) if x >= 0 and y >= 0 and x < m and y < n: print(0) else: print(-1) except:break