#include <bits/stdc++.h>
using namespace std;
const int MAX = 10'000'000;
long long phi[MAX + 1];
int main()
{
	ios::sync_with_stdio(false);
	cin.tie(0);
	iota(phi, phi + MAX + 1, 0);
	phi[1] = 0;
	for (int i = 2; i <= MAX; ++i)
	{
		if (phi[i] == i)
			for (int j = 1; i * j <= MAX; ++j)
				phi[i * j] -= phi[i * j] / i;
		phi[i] = 2 * (i - 1) - phi[i];
		phi[i] += phi[i - 1];
	}
	int T;
	cin >> T;
	while (T--)
	{
		int N;
		cin >> N;
		cout << phi[N] << '\n';
	}
}