#define _USE_MATH_DEFINES
#include <cstdio>
#include <iostream>
#include <sstream>
#include <fstream>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <complex>
#include <string>
#include <vector>
#include <array>
#include <list>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <bitset>
#include <numeric>
#include <limits>
#include <climits>
#include <cfloat>
#include <functional>
#include <iterator>
#include <memory>
#include <regex>
using namespace std;

long long cumulativeXor(long long a)
{
    long long ans = 0;
    for(long long x=(a-1)/4*4; x<a; ++x)
        ans ^= x;
    return ans;
}

long long cumulativeXor(long long a, long long b)
{
    return cumulativeXor(b) - cumulativeXor(a);
}

long long solve(long long k, long long l, int d)
{
    long long ans = cumulativeXor((l >> d) + k) - cumulativeXor(l >> d);
    ans <<= d;
    if(k % 2 != 0)
        ans |= l & ((1 << d) - 1);
    return ans;
}

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

    long long ans = 0;
    while(--n >= 0){
        long long k, l;
        int d;
        cin >> k >> l >> d;
        ans ^= solve(k, l, d);
    }
    cout << ans << endl;

    return 0;
}