x1=100
print('?',x1,flush=True)
y1=int(input())
if y1==99:
  print('!',99,100)
  exit()

x2=99-y1
print('?',x2,flush=True)
y2=int(input())

'''
y1=(100+A)%B
y2=(x2+A)%B=(99-y1+A)%B=(-1)%B
'''

B=y2+1
A=-1
for i in range(B):
  if (100+i)%B==y1:
    A=i

assert A!=-1
print('!',A,B)