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

M=10**9
p=quest(0,0);q=quest(M,0)
x,y=(M+p-q)//2,(-M+p+q)//2
quest(x,y)