#include "wiring.h"
#include <iostream>
#include <stdio.h>
#include <stdlib.h>
using namespace std;
long long N,M;
long long DP[205][205];
bool have[205][205]={0};
vector < int > x,y;
long long F(long long a,long long b)
{
if(a==N&&b==M) return 0;
if(a==N||b==M) return 1e18;
if(have[a][b]) return DP[a][b];
have[a][b]=1;
DP[a][b]=(long long) abs(y[b]-x[a]);
if(N<=M) DP[a][b]+=min(F(a+1,b+1),F(a,b+1));
else DP[a][b]+=min(F(a+1,b+1),F(a+1,b));
return DP[a][b];
}
long long min_total_length(vector< int > r, vector < int > b)
{
long long ans=0,i;
N=r.size();
M=b.size();
x=r;
y=b;
if(N<=200&&M<=200) return F(0,0);
else
{
if(N<=M)
{
for(i=0;i<min(N,M);i++) ans+=(long long) b[i]-r[i];
for(i=N;i<M;i++) ans+=(long long) b[i]-r[N-1];
}
else
{
for(i=1;i<=M;i++) ans+=(long long) b[M-i]-r[N-i];
for(i=0;i<N-M;i++) ans+=(long long) b[0]-r[i];
}
return ans;
}
}
