from pprint import pprint
import random

DEBUG = True

if DEBUG:
    n = 10**8
    x_ = random.randrange(-n, n)
    y_ = random.randrange(-n, n)
    a = (x_, y_)
    b = (-y_, x_)
    o = ((a[0] + b[0]) / 2, (a[1] + b[1]) / 2)
    rr = (a[0] - o[0]) ** 2 + (a[1] - o[1]) ** 2
    S = ""

    def print(Q, flush):
        pprint(Q)
        if Q[0] == "2":
            pprint(f"{o[0]}, {o[1]}, {rr}")
            return

        x, y = map(float, Q.split()[1:])
        assert -(10**9) <= x <= 10**9
        assert -(10**9) <= y <= 10**9
        d = (x - o[0]) ** 2 + (y - o[1]) ** 2
        pprint(f"{rr=} {d=}")

        global S
        if d == rr:
            S = "0"
        elif d > rr:
            S = "+"
        else:
            S = "-"

    def input():
        return S


def judge(Q):
    print(Q, flush=True)
    return input()


if not DEBUG:
    n = int(input())

q = 74

l = 0
r = 2 * n

for _ in range(q):
    mid = (l + r) / 2
    res = judge(f"1 {mid:.9f} 0")
    if res[0] == "+":
        r = mid
    else:
        l = mid

x_p = (l + r) / 2

l = -2 * n
r = 0
for _ in range(q):
    mid = (l + r) / 2
    res = judge(f"1 {mid:.9f} 0")
    if res[0] == "+":
        l = mid
    else:
        r = mid

x_m = (l + r) / 2

l = 0
r = 2 * n
for _ in range(q):
    mid = (l + r) / 2
    res = judge(f"1 0 {mid:.9f}")
    if res[0] == "+":
        r = mid
    else:
        l = mid

y_p = (l + r) / 2

l = -2 * n
r = 0
for _ in range(q):
    mid = (l + r) / 2
    res = judge(f"1 0 {mid:.9f}")
    if res[0] == "+":
        l = mid
    else:
        r = mid

y_m = (l + r) / 2

x = (x_p + x_m) / 2
y = (y_p + y_m) / 2
r2 = x**2 + y**2

judge(f"2 {x:.9f} {y:.9f} {r2:.9f}")