Codeforces Round 836 (Div. 2)
D
Range = √Sum
Codeforces
1800
原题
← CE →
翻译中…

You are given an integer $n$. Find a sequence of $n$ distinct integers $a_1, a_2, \dots, a_n$ such that $1 \leq a_i \leq 10^9$ for all $i$ and $$\max(a_1, a_2, \dots, a_n) - \min(a_1, a_2, \dots, a_n)= \sqrt{a_1 + a_2 + \dots + a_n}.$$

翻译中…

It can be proven that there exists a sequence of distinct integers that satisfies all the conditions above.

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Input

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The first line of input contains $t$ ($1 \leq t \leq 10^4$) — the number of test cases.

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The first and only line of each test case contains one integer $n$ ($2 \leq n \leq 3 \cdot 10^5$) — the length of the sequence you have to find.

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The sum of $n$ over all test cases does not exceed $3 \cdot 10^5$.

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Output

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For each test case, output $n$ space-separated distinct integers $a_1, a_2, \dots, a_n$ satisfying the conditions in the statement.

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If there are several possible answers, you can output any of them. Please remember that your integers must be distinct!

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Note

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In the first test case, the maximum is $3$, the minimum is $1$, the sum is $4$, and $3 - 1 = \sqrt{4}$.

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In the second test case, the maximum is $29$, the minimum is $18$, the sum is $121$, and $29-18 = \sqrt{121}$.

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For each test case, the integers are all distinct.

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样例

Input #1
3
2
5
4
Output #1
3 1
20 29 18 26 28
25 21 23 31
InputCopy OutputCopy
题目信息
题号
1758D
时间限制
1 s
内存限制
256 MB
标签
二分
暴力
构造
数学
双指针

题面与样例版权归 Codeforces 及出题人所有;中文翻译由 AI 生成(CI 管线),如有出入请以原文为准。