print("? 100")

x = int(input())

a = 99
b = 100

if x != 99:
  print("?",100-x-1)
  b = int(input()) + 1
  a = 0
  for i in range(0,101):
    if (i+100)%b == x:
      a = i
      break

print("!",a,b)