A1454.[COCI-2011_2012-contest4]#5 OGRADA

In Mirko’s village all fences are made of exactly N boards with different heights. Mirko doesn’t have his own fence yet, so he decided to build one.
Each board is represented by a positive integer less than 109 - it’s height. We define the niceness of the fence as a sum of height differences between adjacent boards.
Mirko already bought the boards, but he doesn’t know how to order them into a fence. He would like his fence to be similar to Slavko’s fence, but also to be as nice as possible.
We say that two fences are similar if ordering of adjacent boards is the same in both fences, i.e. if i-th board of one fence is smaller (or larger) than (i+1)-st, than the same must hold for that boards of the other fence.
Given Slavko’s fence configuration, and heights of boards that Mirko bought, put Mirko’s fence together so that it is similar to Slavko’s but also as nice as possible. If there is more than one solution, output any of them.

The first line of input contains integer N (2 ≤ N ≤ 300 000), number of boards in each fence.
The following line conatins N different positive integers representing Slavko’s fence.
The following line contains N different positive integers representing heights of boards Mirko bought for his fence.

The first line of output should contain the maximum possible niceness of Mirko’s fence.
The following line should contain N integers, Mirko’s boards in optimal order as described.

50% of the points for test case will be awarded if niceness is correct, but second line is incorrect or
not outputed at all.

First sample description: Mirko bought boards of heights 1, 2, 3 and 4. Fences similar to Slavko’s
that he can build are:
{1,3,2,4} - niceness 2+1+2=5
{1,4,2,3} - niceness 3+2+1=6
{2,3,1,4} - niceness 1+2+3=6
{2,4,1,3} - niceness 2+3+2=7
{3,4,1,2} - niceness 1+3+1=5