#include <iostream>
#include <vector>
#include <stack>
#include <bitset>
#include <fstream>
#include <string>
#include <string.h>
#include <math.h>
#include <algorithm>
#include <bits/stdc++.h>
#include <sstream>
 
using std::string;
using std::stringstream;
using namespace std;
 
typedef vector<int> vi;
typedef pair<int,int> ii;
typedef vector<ii> vii;
 
typedef unsigned int ui;
typedef unsigned long long llu;
typedef unsigned long lu;
typedef long long ll;
 
#define lakh 100010
#define million 1000010
int inf=1000;
//----------------------------------------------------
int n,reqd[17],given[17],dp[17][1<<17];
 
inline int cost(int row,int i){
	return abs(row-i)+abs(reqd[row]-given[i]);
}
 
int solve(int row,int taken){
	if(row==n) return 0;
	if(dp[row][taken]!=-1) return dp[row][taken];
	dp[row][taken]=1000;
	for(int i=0;i<n;i++)
		if(!(taken & (1<<i)))
			dp[row][taken]=min(dp[row][taken],cost(row,i)+solve(row+1,taken|(1<<i)));
	return dp[row][taken];
}
 
void display(){
	for(int i=0;i<n;i++){
		cout<<"\n"<<i<<": ";
		for(int j=0;j<2;j++)
			cout<<dp[i][j]<<" ";
	}
}
 
int main(){
    cin>>n;
    while(n!=0){
    	memset(dp,-1,sizeof(dp));
    	for(int i=0;i<n;i++) cin>>given[i];
    	for(int i=0;i<n;i++) cin>>reqd[i];
    	cout<<solve(0,0)<<endl;
    	//display();
    	cin>>n;
    }
    return 0;
}
 
 

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NCAKMSAyIDMgNCAKMyAxIDQgMiAKNCAKMyAyIDQgMSAKMyAxIDQgMiAKNSAKNSAzIDEgNCAyIAo1IDMgMSA0IDIgCjUgCjEgNSAyIDQgMyAKMyAxIDQgMiA1IAow

4 
1 2 3 4 
3 1 4 2 
4 
3 2 4 1 
3 1 4 2 
5 
5 3 1 4 2 
5 3 1 4 2 
5 
1 5 2 4 3 
3 1 4 2 5 
0