#include "wiring.h"
#include <bits/stdc++.h>
using namespace std;
#define FAST_IO ios_base::sync_with_stdio(0); cin.tie(nullptr)
#define FOR(i, a, b) for(int i = (a); i <= (b); i++)
#define REP(n) FOR(O, 1, (n))
#define pb push_back
#define f first
#define s second
typedef long double ld;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<int, pii> piii;
typedef vector<int> vi;
typedef vector<pii> vii;
typedef vector<ll> vl;
typedef vector<piii> viii;
long long min_total_length(std::vector<int> r, std::vector<int> b) {
int n = (int)r.size();
int m = (int)b.size();
ll rMost = r[n-1], lMost = b[0];
int fId = 0, sId = 0;
ll ans = 0;
while (fId < n && sId < m) {
ans += b[sId] - r[fId];
fId++, sId++;
}
while (sId < m) {
ans += b[sId] - rMost;
sId++;
}
while (fId < n) {
ans += lMost - r[fId];
fId++;
}
return ans;
}
