#pragma GCC optimize ("O3")
#pragma GCC target ("avx")
#include <bits/stdc++.h>
using namespace std;

bool ok0[4003][4003];
bool ok1[4003][4003];
bool ok2[4003][4003];

int main() {
    int n;
    cin >> n;

    vector<vector<int64_t>> a(3), b(3);
    for (int i = 0; i < 3; i++) {
        a[i].push_back(1);
        b[i].push_back(1);
    }
    for (int i = 0; i < n; i++) {
        int p, ta, tb;
        cin >> p >> ta >> tb;
        a[p].push_back(ta);
        b[p].push_back(ta + tb);
    }
    int ans = 0;
    for (int i = 0; i < a[0].size(); i++) {
        for (int j = 0; j < a[1].size(); j++) {
            if (a[0][i] * b[1][j] + a[1][j] * b[0][i] >= b[0][i] * b[1][j]) {
                ok0[i][j] = true;
            }
        }
    }
    for (int i = 0; i < a[0].size(); i++) {
        for (int k = 0; k < a[2].size(); k++) {
            if (a[0][i] * b[2][k] + a[2][k] * b[0][i] >= b[0][i] * b[2][k]) {
                ok1[i][k] = true;
            }

        }
    }
    for (int j = 0; j < a[1].size(); j++) {
        for (int k = 0; k < a[2].size(); k++) {
            if (a[1][j] * b[2][k] + a[2][k] * b[1][j] >= b[1][j] * b[2][k]) {
                ok2[j][k] = true;
            }
        }
    }
    for (int i = 0; i < a[0].size(); i++) {
        for (int j = 0; j < a[1].size(); j++) {
            for (int k = 0; k < a[2].size(); k++) {
                if (ok0[i][j] && ok1[i][k] && ok2[j][k] && a[0][i] * b[1][j] * b[2][k] + a[1][j] * b[0][i] * b[2][k] + a[2][k] * b[0][i] * b[1][j] != 2 * b[0][i] * b[1][j] * b[2][k]) {
                    ans++;
                }
            }
        }
    }
    cout << ans << endl;
}