#include using namespace std; typedef long long ll; const double pi=3.141592653589793; typedef unsigned long long ull; typedef long double ldouble; const ll INF=1e18; #define rep(i, n) for(ll i = 0; i < (ll)(n); i++) #define rep2(i, s, n) for (ll i = (s); i < (ll)(n); i++) template inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } int main(){ ll n; cin >> n; ll p; rep(i, n) { cin >> p; if(p != 2) cout << (p-1) * (p-1) << endl; else cout << 2 << endl; } }