Yoga_Class.cpp

/*___________________In the name of Allah________________*/
/*____________________Solved By shafinkun________________*/
// Problem link :

#include <bits/stdc++.h>
using namespace std;
#define optimize()                \
    ios_base::sync_with_stdio(0); \
    cin.tie(0);                   \
    cout.tie(0);
#define endl '\n'
#define int long long
#define yes cout << "YES\n"
#define no cout << "NO\n"
const int MOD = 1e9 + 7;

void solve()
{
    int N, X, Y;
    cin >> N >> X >> Y;
    
    int temp1 = N * X;
    int temp2 = (N & 1) ? (N / 2) * Y + X : (N / 2) * Y;

    cout << max(temp1, temp2) << endl;

    return;
}

signed main()
{
    optimize();
    int t = 1;
    cin >> t;
    while (t--)
    {
        solve();
    }
    return 0;
}