#include <bits/stdc++.h>
#define pb push_back
using namespace std;
#include "shortcut.h"
long long inf = 1e16;
long long find_shortcut(int n, vector<int> l, vector<int> d, int c){
vector<long long> pre(n);
for(int i = 0; i < n-1; i++){
pre[i+1] = pre[i] + l[i];
}
vector<long long> lfar(n), rfar(n);
lfar[0] = d[0];
for(int i = 1; i < n; i++){
if(d[i] > lfar[i-1] + l[i-1]) lfar[i] = d[i];
else lfar[i] = lfar[i-1] + l[i-1];
}
rfar[n-1] = d[n-1];
for(int i = n-2; i >= 0; i--){
if(d[i] > rfar[i+1] + l[i]) rfar[i] = d[i];
else rfar[i] = rfar[i+1] + l[i];
}
vector<long long> precalcl(n), precalcr(n);
for(int i = 1; i < n; i++){
precalcl[i] = max(precalcl[i-1], (long long)(lfar[i-1] + l[i-1] + d[i]));
}
for(int i = n-2; i >= 0; i--){
precalcr[i] = max(precalcr[i+1], (long long)(rfar[i+1] + l[i] + d[i]));
}
long long ans = inf;
for(int l = 0; l < n; l++){
long long maxla = precalcl[l];
for(int r = l+1; r < n; r++){
long long dis1 = 0, dis2 = 0;
dis1 = lfar[l] + rfar[r] + min((long long)c, pre[r] - pre[l]); // L-R
dis1 = max(dis1, precalcr[r]); // R-R
long long clen = pre[r] - pre[l] + c;
for(int j = l+1; j <= r; j++){
dis2 = max(dis2, lfar[l] + (long long)d[j] + min(pre[j] - pre[l], clen - (pre[j] - pre[l])));
} // L-M
for(int j = l; j < r; j++){
dis2 = max(dis2, rfar[r] + (long long)d[j] + min(pre[r] - pre[j], clen - (pre[r] - pre[j])));
} // R-M
for(int j = l+1; j < r; j++){ // M-M
long long addj = d[j];
for(int j2 = j+1; j2 < r; j2++){
long long addj2 = d[j2];
dis2 = max(dis2, min(pre[j2] - pre[j], clen - (pre[j2] - pre[j])) + addj + addj2);
}
}
ans = min(ans, max({maxla, dis1, dis2}));
}
}
return ans;
}
