import sys
input = lambda : sys.stdin.readline().rstrip()
sys.setrecursionlimit(max(1000, 10**9))
write = lambda x: sys.stdout.write(x+"\n")


def out(k,x):
    print(" ".join(map(str, (k,x))))
    import sys
    sys.flush()
n = int(input())
if n%2==0:
    out(2, n//2-1)
else:
    out(1, n//2)
while True:
    t = int(input())
    if t in (0,1):
        break
    k,x = map(int, input().split())
    if t==2:
        break
    out(k, n+1-x-(k-1))