#include "wiring.h"
#include <bits/stdc++.h>
#define fst first
#define snd second
#define pb push_back
#define SZ(x) (int)x.size()
#define ALL(x) x.begin(),x.end()
#define forn(i,a,b) for(int i = a; i<b;i++)
#define mset(a,v) memset(a,v,sizeof(a))
using namespace std;
typedef long long ll;
const int MAXN = 200+5;
const ll INF = 10000000000000000;
vector<ll> red;
vector<ll> blu;
ll dp[MAXN][MAXN];
ll f(ll x, ll y){
ll &res=dp[x][y];
if(res!=-1) return res;
if(x==SZ(red) && y==SZ(blu)) return 0;
if(x==SZ(red)) return INF;
if(y==SZ(blu)) return INF;
res=INF;
res=min(f(x+1,y),min( f(x+1,y+1),f(x,y+1) ))+abs(red[x]-blu[y]);
return res;
}
long long min_total_length(std::vector<int> r, std::vector<int> b) {
mset(dp,-1);
red.clear(); forn(i,0,SZ(r)) red.pb(r[i]);
blu.clear(); forn(i,0,SZ(b)) blu.pb(b[i]);
sort(ALL(red));
sort(ALL(blu));
return f(0,0);
}
