import sys

def input(): return sys.stdin.readline().strip()
def list2d(a, b, c): return [[c] * b for i in range(a)]
def list3d(a, b, c, d): return [[[d] * c for k in range(b)] for i in range(a)]
def list4d(a, b, c, d, e): return [[[[e] * d for k in range(c)] for k in range(b)] for i in range(a)]
def ceil(x, y=1): return int(-(-x // y))
def INT(): return int(input())
def MAP(): return map(int, input().split())
def LIST(N=None): return list(MAP()) if N is None else [INT() for i in range(N)]
def Yes(): print('Yes')
def No(): print('No')
def YES(): print('YES')
def NO(): print('NO')
sys.setrecursionlimit(10**9)
INF = 10**19
MOD = 10**9 + 7
EPS = 10**-10

# N = INT()
# S = '0' * N

# memo = {}
# def rec(S):
#     if S in memo:
#         return memo[S]
#     if not S.count('0'):
#         memo[S] = 0
#         return 0
#     S = list(S)
#     res = 1
#     for i in range(N):
#         if S[i] == '0':
#             S[i] = '1'
#             res &= rec(''.join(S))
#             S[i] = '0'
#     for i in range(N-1):
#         if S[i] == S[i+1] == '0':
#             S[i] = S[i+1] = '1'
#             res &= rec(''.join(S))
#             S[i] = S[i+1] = '0'
#     S = ''.join(S)
#     memo[S] = 1-res
#     return 1-res

# res = rec(S)
# win = []
# for k, v in memo.items():
#     # 負け状態を列挙して調べる
#     if not v:
#         win.append(k)
# win.reverse()
# for s in win:
#     if s.count('1') <= 4:
#         print(s.count('1'), s)

N = INT()
S = ['0'] * N

# 真ん中で区切る
if N % 2 == 0:
    print('{0} {1}'.format(2, N//2), flush=1)
    S[N//2-1] = S[N//2] = '1' 
else:
    print('{0} {1}'.format(1, ceil(N, 2)), flush=1)
    S[ceil(N, 2)-1] = '1'

cur = ['0'] * (ceil(N, 2)-1)
dist = N//2 + 1
while 1:
    t = INT()
    if t == 0:
        break

    k, x = MAP()
    x -= 1
    for i in range(x, x+k):
        S[x] = '1'
    if N % 2 == 0:
        L, R = S[:N//2-1], S[N//2+1:]
    else:
        L, R = S[:ceil(N, 2)-1], S[ceil(N, 2):]
    # 左右反対側で同じことをする
    if L != cur:
        x += dist
        cur = L
    else:
        x -= dist
        cur = R
    for i in range(x, x+k):
        S[x] = '1'
    x += 1
    print('{0} {1}'.format(k, x), flush=1)