CF1353C.Board Moves

普及/提高-

通过率:0%

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题目描述

You are given a board of size n×nn \times n , where nn is odd (not divisible by 22 ). Initially, each cell of the board contains one figure.

In one move, you can select exactly one figure presented in some cell and move it to one of the cells sharing a side or a corner with the current cell, i.e. from the cell (i,j)(i, j) you can move the figure to cells:

  • (i1,j1)(i - 1, j - 1) ;
  • (i1,j)(i - 1, j) ;
  • (i1,j+1)(i - 1, j + 1) ;
  • (i,j1)(i, j - 1) ;
  • (i,j+1)(i, j + 1) ;
  • (i+1,j1)(i + 1, j - 1) ;
  • (i+1,j)(i + 1, j) ;
  • (i+1,j+1)(i + 1, j + 1) ;

Of course, you can not move figures to cells out of the board. It is allowed that after a move there will be several figures in one cell.

Your task is to find the minimum number of moves needed to get all the figures into one cell (i.e. n21n^2-1 cells should contain 00 figures and one cell should contain n2n^2 figures).

You have to answer tt independent test cases.

输入格式

The first line of the input contains one integer tt ( 1t2001 \le t \le 200 ) — the number of test cases. Then tt test cases follow.

The only line of the test case contains one integer nn ( 1n<51051 \le n < 5 \cdot 10^5 ) — the size of the board. It is guaranteed that nn is odd (not divisible by 22 ).

It is guaranteed that the sum of nn over all test cases does not exceed 51055 \cdot 10^5 ( n5105\sum n \le 5 \cdot 10^5 ).

输出格式

For each test case print the answer — the minimum number of moves needed to get all the figures into one cell.

输入输出样例

  • 输入#1

    3
    1
    5
    499993

    输出#1

    0
    40
    41664916690999888
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