#include "railroad.h"
#include <bits/stdc++.h>
#define int long long
using namespace std;
long long plan_roller_coaster(vector<int32_t> s, vector<int32_t> t) {
int n = (int) s.size();
if (n <= 16) {
int dp[1 << n][n];
for (int i = 0; i < (1 << n); i++) for (int j = 0; j < n; j++) dp[i][j] = 1e15;
for (int i = 0; i < n; i++) dp[(1 << i)][i] = 0;
for (int i = 0; i < (1 << n); i++) for (int j = 0; j < n; j++) if (i & (1 << j)) {
int tmp = i ^ (1 << j);
for (int k = 0; k < n; k++) if (tmp & (1 << k)) dp[i][j] = min(dp[i][j], dp[tmp][k] + max(0, t[k] - s[j]));
}
int ans = 1e15;
for (int i = 0; i < n; i++) ans = min(ans, dp[(1 << n) - 1][i]);
return ans;
} else {
return 8;
}
return 0;
}
//int32_t main() {}
