#include "wiring.h"
#include<bits/stdc++.h>
using namespace std;
#define sz(v) ((int)(v).size())
typedef long long lint;
typedef pair<int,int> pii;
int R[200002],B[200002];
int n,m;
lint D[202][202];
lint f(int p,int q)
{
if(D[p][q]>=0)return D[p][q];
if(p==0 && q==0)return D[p][q]=0;
if(p==0 || q==0)return D[p][q]=1e18;
if(p<q)
{
lint sum=0;
D[p][q]=1e18;
for(int i=1;i<=q-p+1;i++)
{
sum+=abs(R[p]-B[q-i+1]);
D[p][q]=min(D[p][q],sum+f(p-1,q-i));
}
}
else
{
lint sum=0;
D[p][q]=1e18;
for(int i=1;i<=p-q+1;i++)
{
sum+=abs(R[p-i+1]-B[q]);
D[p][q]=min(D[p][q],sum+f(p-i,q-1));
}
}
return D[p][q];
}
lint min_total_length(vector<int> r, vector<int> b) {
lint ans=0;
n=sz(r),m=sz(b);
for(int i=0;i<n;i++)R[i+1]=r[i];
for(int j=0;j<m;j++)B[j+1]=b[j];
memset(D,-1,sizeof(D));
ans=f(n,m);
return ans;
}
