import sys
readline=sys.stdin.readline

def Interactive(*query):
    print(*query)
    sys.stdout.flush()
    return input()

def Tersect_Int(L,R,f,eps=1e-12,maximize=False):
    f_L,f_R=f(L),f(R)
    while abs(R-L)>1:
        l,r=(2*L+R+1)//3,(L+2*R+1)//3
        f_l,f_r=f(l),f(r)
        if maximize:
            if f_l>=f_r>=f_R:
                R=r
                f_R=f_r
            elif f_L<=f_l<=f_r:
                L=l
                f_L=f_l
            else:
                L,R=l,r
                f_L,f_R=f_l,f_r
        else:
            if f_l<=f_r<=f_R:
                R=r
                f_R=f_r
            elif f_L>=f_l>=f_r:
                L=l
                f_L=f_l
            else:
                L,R=l,r
                f_L,f_R=f_l,f_r
    if maximize:
        if f_L<=f_R:
            retu=R
        else:
            retu=L
    else:
        if f_L<=f_R:
            retu=L
        else:
            retu=R
    return retu

def fx(x):
    return int(Interactive("?",x,0,0))
def fy(y):
    return int(Interactive("?",0,y,0))
def fz(z):
    return int(Interactive("?",0,0,z))
print("!",Tersect_Int(-15,15,fx),Tersect_Int(-15,15,fy),Tersect_Int(-15,15,fz))