#include "wiring.h"
#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define pb push_back
#define all(x) x.begin(), x.end()
#define allr(x) x.rbegin(), x.rend()
#define mp make_pair
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int MAXN = 1e5+10;
const int MOD = 1e9+7;
const int INF = 0x3f3f3f3f;
const ll LINF = 0x3f3f3f3f3f3f3f3f;
ll min_total_length(vector<int> r, vector<int> b) {
int n=(int)r.size(), m=(int)b.size();
vector<vector<ll>> dp(n+1, vector<ll>(m+1));
for(int i=1;i<=n;i++) dp[i][0]=LINF;
for(int i=1;i<=m;i++) dp[0][i]=LINF;
dp[0][0]=0;
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++){
ll val=abs((ll)b[j-1]-(ll)r[i-1]);
dp[i][j]=min({dp[i-1][j-1], dp[i-1][j], dp[i][j-1]})+val;
}
}
return dp[n][m];
}
