题目描述
You are given a permutation p of the set {1, 2, ..., N}. Please construct two sequences of positive integers a_1, a_2, ..., a_N and b_1, b_2, ..., b_N satisfying the following conditions:
- $1 \leq a_i, b_i \leq 10^9$ for all i
- a_1 < a_2 < ... < a_N
- b_1 > b_2 > ... > b_N
- a_{p_1}+b_{p_1} < a_{p_2}+b_{p_2} < ... < a_{p_N}+b_{p_N}
Constraints
- $2 \leq N \leq 20,000$
- p is a permutation of the set {1, 2, ..., N}
Input
The input is given from Standard Input in the following format:
N
p_1 p_2 ... p_N
Output
The output consists of two lines. The first line contains a_1, a_2, ..., a_N seperated by a space. The second line contains b_1, b_2, ..., b_N seperated by a space.
It can be shown that there always exists a solution for any input satisfying the constraints.
Examples
Input
2
1 2
Output
1 4
5 4
Input
3
3 2 1
Output
1 2 3
5 3 1
Input
3
2 3 1
Output
5 10 100
100 10 1
输入格式
见题面
输出格式
见题面
样例输入
3
3 2 1
样例输出
1 2 3
5 3 1