print("?",100,flush=True)
mod=int(input())
if mod==99:
    print("!",99,100,flush=True)
else:
    print("?",99-mod,flush=True)
    b=int(input())+1
    for a in range(1,b):
        if (a+100)%b==mod:
            print("!",a,b,flush=True)
            exit()