#include <bits/stdc++.h>
using namespace std;
#define ll long long
int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int t;
    cin >> t;
    while (t--) {
        ll n, res = 0;
        cin >> n;
        while (n > 2) {
            ll m1 = n / 3;
            ll m2 = m1;
            ll m3 = n - m1 - m2;
            res += m1;
            n = m3;
        }
        cout << res << "\n";
    }
}
 
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