print('?',100,flush=True)
y=int(input())
pos=y
if y==99:
  print('!',99,100,flush=True)
  exit()
z=100-y
print('?',z-1,flush=True)
y=int(input())
B=y+1
for x in range(B):
  if (x+100)%B==pos:
    A=x
    break
print('!',A,B,flush=True)