from sys import stdout

n = int(input())

def ask(k, x):
    print(k, x)
    stdout.flush()
    t = int(input())
    if t == 3:
        return (t, *map(int, input().split()))
    return (t,)

if n % 2 == 0:
    t, *last = ask(2, n // 2)
else:
    t, *last = ask(1, (n + 1) // 2)

while t == 3:
    k, x = last
    if k == 1:
        t, *last = ask(1, n - x + 1)
    elif k == 2:
        x += 1
        t, *last = ask(2, n - x + 1)