#include "wiring.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<int>vi;
#define pb push_back
#define sz(v) (int)v.size()
#define FOR(i,a,b) for(int i=a; i<b; i++)
//------------------------------------
const ll INF=1e18;
const int MX=200+10;
int N,M;
vi a(MX),b(MX);
ll memo[MX][MX];
ll solve(int i, int j){
if(i==N){
if(j<M) return 1e18;
return 0;
}
ll ind=memo[i][j];
if(ind!=-1) return ind;
ll ans=1e18,val=0;
if(j) ans=solve(i+1,j)+abs(b[j-1]-a[i]);
/*FOR(k,max(0,j-1),M){
val+=abs(b[k]-a[i]);
ll x=solve(i+1,k+1)+val;
if(x<ans) ans=x;
}*/
val=0;
FOR(k,j,M){
val+=abs(b[k]-a[i]);
ll x=solve(i+1,k+1)+val;
if(x<ans) ans=x;
}
return ind=ans;
}
ll min_total_length(vi a, vi b) {
N=sz(a),M=sz(b);
FOR(i,0,N) ::a[i]=a[i];
FOR(i,0,M) ::b[i]=b[i];
memset(memo,-1,sizeof(memo));
return solve(0,0);
}
