n = int(input())
q = 70

l = 0
r = 1 << 30
for _ in range(q):
    mid = (l + r) / 2
    print(1, f"{mid:.9f}", 0, flush=True)
    res = input()
    if res[0] == "-":
        r = mid
    else:
        l = mid

x_p = (l + r) / 2

l = -(1 << 30)
r = 0
for _ in range(q):
    mid = (l + r) / 2
    print(1, f"{mid:.9f}", 0, flush=True)
    res = input()
    if res[0] == "-":
        l = mid
    else:
        r = mid

x_m = (l + r) / 2

l = 0
r = 1 << 30
for _ in range(q):
    mid = (l + r) / 2
    print(1, 0, f"{mid:.9f}", flush=True)
    res = input()
    if res[0] == "-":
        r = mid
    else:
        l = mid

y_p = (l + r) / 2

l = -(1 << 30)
r = 0
for _ in range(q):
    mid = (l + r) / 2
    print(1, 0, f"{mid:.9f}", flush=True)
    res = input()
    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

print(2, f"{x:.9f}", f"{y:.9f}", f"{r2:.9f}", flush=True)