#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define ll long long
#define int long long
#define ld long double
#define pii pair<int,int>
#define rand() abs((rand()<<15)|rand())
#define randll() abs(((long long)rand()<<30)|rand())
signed main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
long long seed;
asm("rdtsc" : "=A"(seed));
srand(seed);
int q;
cin >> q;
while(q--) {
int X, L, N;
cin >> X >> L >> N;
int counter = X;
vector<int> s1(1000000, 0), s2(1000000, 0);
int xo = 0, x;
while(counter) {
s2.push_back(s1.back() ^ xo);
s1.pop_back();
xo ^= 1;
if(s2.back() > L) {
counter--;
} else {
s2.push_back(N);
s2.push_back(N);
x = s2.back(); s2.pop_back(); s2.back() += x;
x = s2.back(); s2.pop_back(); s2.back() += x;
s1.push_back(s2.back()^xo);
s1.push_back(s2.back()^xo);
s2.pop_back();
s2.pop_back();
}
}
cout << s2.back() << endl;
}
}
