import sys
for x1 in range(1, 101):
  flg = 0
  ls = [[] for _ in range(100)]
  for b in range(1, 101):
    for a in range(b):
      ls[(x1+a)%b].append([a, b])
  cnd = [0] * 100
  for i in range(100):
    for x2 in range(1, 101):
      s = set()
      for a, b in ls[i]:
        s.add((x2+a)%b)
      if len(s) == len(ls[i]):
        cnd[i] = x2
        break
    if cnd[i] == 0:
      flg = 1
      break
  if flg:
    continue
  else:
    print(f"? {x1}")
    sys.stdout.flush()
    y1 = int(input())
    print(f"? {cnd[y1]}")
    y2 = int(input())
    for a, b in ls[y1]:
      if (cnd[y1] + a) % b == y2:
        print(f"! {a} {b}")
    break