#!/usr/bin/env python3.8
import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines
import numpy as np

N = int(readline())
PTR = np.array(read().split(), np.int64)
P = PTR[::3]
T = PTR[1::3]
R = PTR[2::3]

INF = 10 ** 4 + 100
dp = np.zeros((10001, 10001), np.int32)
for p, t, r in zip(P.tolist(), T.tolist(), R.tolist()):
    if dp[p, t] < r:
        dp[p, t] = r
    if p:
        if dp[p - 1, t] < r + 1:
            dp[p - 1, t] = r + 1
    if t:
        if dp[p, t - 1] < r + 1:
            dp[p, t - 1] = r + 1

dp = dp[::-1, ::-1]
np.maximum.accumulate(dp, axis=0, out=dp)
np.maximum.accumulate(dp, axis=1, out=dp)
dp = dp[::-1, ::-1]

ok = dp[P, T] <= R
print('\n'.join((ok + 1).astype(str)))