// This file is made by YJinpeng，created by XuYike‘s black technology automatically.// Copyright (C) 2016 ChangJun High School, Inc.// I don‘t know what this program is.#include <iostream>#include <cstdio>using namespace std;int main(){    freopen("2050.in","r",stdin);    freopen("2050.out","w",stdout);    int n,t;scanf("%d",&t);    while(t--)scanf("%d",&n),printf("%d\n",2*n*n-n+1);    return 0;}