#!/usr/bin/env python3
n = int(input())
assert 0 <= n <= 4000
q = []
for _ in range(n):
    p, a, b = map(int, input().split())
    assert 0 <= p <= 2
    assert 1 <= a and 1 <= b
    assert a + b <= 4 * 10**5
    q += [(p, a, b)]
for i in range(n):
    for j in range(i):
        assert q[i][0] != q[j][0] or q[i][1]*q[j][2] != q[j][1]*q[i][2]
print(0)