#D13095. Construct Sequences
Construct Sequences
Construct Sequences
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
inputFormat
Input
The input is given from Standard Input in the following format:
N p_1 p_2 ... p_N
outputFormat
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
样例
3
3 2 1
1 2 3
5 3 1
</p>