#include "wiring.h"
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_pbds;
#define ll long long
#define pb push_back
typedef pair<ll,ll> pii;
typedef tree<ll, null_type,less<ll>, rb_tree_tag, tree_order_statistics_node_update> indexed_set;
const ll MAXN = 2e5+4;
const ll INF = 1e9+7;
long long min_total_length(std::vector<int> r, std::vector<int> b){
ll n=(ll)r.size(), m=(ll)b.size(),ans=0,i;
for(i=0;i<n-1;i++){
ans+=b[0]-r[i];
}
for(i=1;i<m;i++){
ans+=b[i]-r[n-1];
}
return ans;
}
