x, y = map(int, input().split())

match (x, y):
  case (0, 0):
    v = (0, 0, 0, 0)
  case (0, 1):
    v = (0, 1, 1, 1)
  case (1, 0):
    v = (1, 0, 0, 0)
  case (1, 1):
    v = (1, 1, 1, 1)

print(4)
print(*v, flush=True)

t = int(input())
print(t, flush=True)