#include <iostream>
#include <vector>
#include <algorithm>

template <typename T>
struct rational {
    T a, b;
    rational():a(0),b(1) {}
    rational(T _a):a(_a),b(1) {}
    rational(T _a, T _b):a(_a),b(_b) {}
    rational<T> operator +(const rational<T> o) const { 
        return b == o.b ? rational<T>(a + o.a, b) : rational<T>(a * o.b + o.a * b, b * o.b);
    }
    rational<T> operator -(const rational<T> o) const {
        return b == o.b ? rational<T>(a - o.a, b) : rational<T>(a * o.b - o.a * b, b * o.b);
    }
    bool operator <(const rational<T> o) const {
        return b == o.b ? a < o.a : a * o.b < o.a * b;
    }
    rational<T> diff1() const { return rational<T>(b - a, b); }
};

int main() {
    
    using std::vector;
    typedef rational<long long> rational;
    
    int n;
    vector<rational> ps[3];
    
    std::cin >> n;
    for (auto i = 0; i < n; i++) {
        int p, a, b;
        std::cin >> p >> a >> b;
        ps[p].push_back({a, a + b});
    }
    
    for (auto i = 0; i < 3; i++) {
        ps[i].push_back({1, 1});
        std::sort(ps[i].begin(), ps[i].end());
    }
    
    auto ans = 0;
    
    for (auto it0 = ps[0].begin(); it0 != ps[0].end(); it0++) {
        auto x = *it0, dx = x.diff1();
        for (auto it1 = std::lower_bound(ps[1].begin(), ps[1].end(), dx); it1 != ps[1].end(); it1++) {
            auto y = *it1, dy = y.diff1();
            auto it2 = std::lower_bound(ps[2].begin(), ps[2].end(), std::max(dx, dy));
            ans += (ps[2].end() - it2) - 1;
            if ((x - dy).a) {
                auto r = dx + dy;
                auto cr = std::lower_bound(it2, ps[2].end(), r);
                if ((*cr - r).a) {
                    ans++;
                }
            }
        }
    }
    
    std::cout << ans << std::endl;
    
    
    return 0;
}