def quest(x,y):
    print(x,y,flush=True)
    d=int(input())
    if d:
        return d
    else:
        exit(0)

#X座標の決定
L,R=0,10**9
while R-L>2:
    K=(R-L)//3
    alpha=L+K
    beta =L+2*K

    A=quest(alpha,0)
    B=quest(beta ,0)

    if A<B:
        R=beta
    else:
        L=alpha

alpha,beta,gamma=quest(L,0),quest(L+1,0),quest(L+2,0)
if alpha==min(alpha,beta,gamma):
    X=L
elif beta==min(alpha,beta,gamma):
    X=L+1
else:
    X=L+2

D,U=0,10**9
while U-D>2:
    K=(U-D)//3
    alpha=D+K
    beta =D+2*K

    A=quest(X,alpha)
    B=quest(X,beta )

    if A<B:
        U=beta
    else:
        D=alpha

quest(X,D);quest(X,D+1);quest(X,D+2)