def main():
    xmin = 0
    xmax = 100000

    while True:
        x = xmin + (xmax - xmin) // 2
        print(x, 0)
        ret1 = int(input())
        print(x + 1, 0)
        ret2 = int(input())

        if ret1 < ret2:
            xmax = x
        else:
            xmin = x

        if xmax - xmin == 1:
            ret1 = print(xmin, 0)
            ret2 = print(xmax, 0)
            if ret1 < ret2:
                x = xmin
                y = ret1
            else:
                x = xmax
                y = ret2
            break

    print(x, y)

main()