#include "wiring.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define FOR(i,a,b) for(int i=a; i<b; i++)
typedef vector<int>vi;
#define pb push_back
#define sz(x) (int)x.size()
#define all(x) begin(x), end(x)
template<class T> bool ckmin(T& a, const T& b) { return a > b ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }
const ll INF=1e18;
//------------------------------------------
int N, M;
vi r,b;
ll dist(int i, int j){return abs(b[j]-r[i]);}
ll min_total_length(vi r, vi b) {
::r=r; ::b=b;
N=sz(r), M=sz(b);
vector<ll> reqr(N,INF), reqb(M,INF);
FOR(i,0,N) FOR(j,0,M) ckmin(reqr[i],dist(i,j)), ckmin(reqb[j],dist(i,j)); ;
ll ans=0;
FOR(i,0,N){
ll dif=-1; int idx;
FOR(j,0,M) if(ckmax(dif,reqr[i]+reqb[j]-dist(i,j))) idx=j;
ans+=dist(i,idx);
reqr[i]=0; reqb[idx]=0;
}
FOR(j,0,M) if(reqb[j]){
ll dif=-1; int idx;
FOR(i,0,N) if(ckmax(dif,reqr[i]+reqb[j]-dist(i,j))) idx=i;
ans+=dist(idx,j);
}
return ans;
}
/*
4 5
1 2 3 7
0 4 5 9 10
10
*/
