def func(): m, n = list(map(int, input().split())) if 1 <= m <= 9 and 1 <= n <= 9: print('0') else: print('-1') x1, y1, x2, y2 = list(map(int, input().split())) if 0 <= x1 < m and 0 <= x2 < m and 0 <= y1 < n and 0 <= y2 < n: print('0') else: print('-1') x = int(input()) if 0 <= x < m and m < 9: print('0') else: print('-1') y = int(input()) if 0 <= y < n and n < 9: print('0') else: print('-1') x, y = list(map(int, input().split())) if 0 <= x < m and 0 <= y < n: print('0') else: print('-1') while True: try: func() except EOFError: break