import sys
print("?",100)
y = int(input())
if y == 99:
    print("!",99,100)
    exit()
print("?",100 - y - 1)
yy = int(input())
B = yy + 1
for a in range(B):
    if (a + 100) % B == y:
        break
print("!",a,B)