def main():
    xmin = 0
    xmax = 100000
    ymin = 0
    ymax = 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:
            y = ret1
            break

    print(x, y)
        
main()