P17402 [CodeChef] EASYPERM
普及-
题目描述

You are given an integer N.

Construct any permutation A of N integers such that the value $LCM(1 + A_{1} , 2 + A_{2}, \ldots, N + A_{N})$ is minimised.

Note:
LCM denotes the [least common multiple] of the integers.
A permutation of N integers contains all integers from 1 to N exactly once.

------ Input Format ------

  • First line will contain T, number of test cases. Then the test cases follow.
  • Each test case contains a single line of input, one integer N.

------ Output Format ------

For each test case, output a permutation that minimises the value $LCM(1 + A_{1} , 2 + A_{2}, \ldots, N + A_{N})$.

------ Constraints ------

$1 ≤ T ≤ 1000$
$2 ≤ N ≤ 1000$

----- Sample Input 1 ------
1
2

----- Sample Output 1 ------
2 1

----- explanation 1 ------
Test case $1$: The permutation for which the value is minimised is $[2, 1]$. The minimum value is $LCM(1+2, 2+1) = LCM(3, 3) = 3$.

输入格式

见题面

输出格式

见题面

样例输入
1 2
样例输出
2 1