#include <iostream>
#include <iomanip>
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
#define nl endl
#define cy cout << "YES\n"
#define cn cout << "NO\n"
#define sz s.size()
#define allv v.begin(), v.end()
void sherry()
{
    ios_base::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr);
#ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout);
#endif
}

void solve()
{
    ll a;
    cin >> a;
    cout << (ceil(double( a * a ) / 2 )) << nl;
}
int main()
{
    sherry();
    ll t = 1;
    cin >> t;
    while (t--)
    {
        solve();
    }
    return 0;
}