#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <cstdio>
#include <cstring>
#include <cmath>
using namespace std;
using ll = long long;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);

    int n;
    cin >> n;

    ll r = 0;
    for (int i = 0; i < n; i++) {
        ll k, l, d;
        cin >> k >> l >> d;
        d = 1LL << d;

        if (l & d) {
            r ^= l;
            k--;
            l += d;
        }
        if (k % 2) {
            r ^= l + (k - 1) * d;
            k--;
        }
        if (k / 2 % 2) {
            r ^= d;
        }
    }

    cout << r << endl;

    return 0;
}