AtCoder Beginner Contest 066
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Problem Statement

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You are given an integer sequence of length $n$, $a_1, ..., a_n$. Let us consider performing the following $n$ operations on an empty sequence $b$.

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The $i$-th operation is as follows:

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  1. Append $a_i$ to the end of $b$.
  2. Reverse the order of the elements in $b$.
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Find the sequence $b$ obtained after these $n$ operations.

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Constraints

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  • $1 \leq n \leq 2\times 10^5$
  • $0 \leq a_i \leq 10^9$
  • $n$ and $a_i$ are integers.
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Input

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Input is given from Standard Input in the following format:

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n
a_1 a_2 ... a_n

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Output

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Print $n$ integers in a line with spaces in between. The $i$-th integer should be $b_i$.

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样例

Input #1
4
1 2 3 4
Output #1
4 2 1 3
- After step 1 of the first operation, $b$ becomes: $1$. - After step 2 of the first operation, $b$ becomes: $1$. - After step 1 of the second operation, $b$ becomes: $1, 2$. - After step 2 of the second operation, $b$ becomes: $2, 1$. - After step 1 of the third operation, $b$ becomes: $2, 1, 3$. - After step 2 of the third operation, $b$ becomes: $3, 1, 2$. - After step 1 of the fourth operation, $b$ becomes: $3, 1, 2, 4$. - After step 2 of the fourth operation, $b$ becomes: $4, 2, 1, 3$. Thus, the answer is `4 2 1 3`.
Input #2
3
1 2 3
Output #2
3 1 2
As shown above in Sample Output 1, $b$ becomes $3, 1, 2$ after step 2 of the third operation. Thus, the answer is `3 1 2`.
Input #3
1
1000000000
Output #3
1000000000
Input #4
6
0 6 7 6 7 0
Output #4
0 6 6 0 7 7
题目信息
题号
arc077_a
时间限制
2 s
内存限制
256 MB

题面与样例版权归 AtCoder 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。