#include <bits/stdc++.h>
#include "factories.h"
using namespace std;
#define ll long long
int n;
ll dist[5001];
vector <pair <int, ll> > v[5001];
void Init(int N, int A[], int B[], int D[]) {
n = N;
for(int i = 0 ; i < N ; i++){
v[A[i]].push_back(make_pair(B[i], D[i]));
v[B[i]].push_back(make_pair(A[i], D[i]));
}
}
long long Query(int S, int X[], int T, int Y[]) {
set <pair <ll, int> > ready;
for(int i = 0 ; i < n ; i++)
dist[i] = 1e18;
for(int i = 0 ; i < S ; i++){
dist[X[i]] = 0;
ready.insert(make_pair(0, X[i]));
}
while(ready.size()){
auto cur = *ready.begin();
ready.erase(ready.begin());
for(auto &i : v[cur.second]){
if(i.second + cur.first < dist[i.first]){
dist[i.first] = i.second + cur.first;
ready.insert(make_pair(dist[i.first], i.first));
}
}
}
ll ret = 1e18;
for(int i = 0 ; i < T ; i++)
ret = min(ret, dist[Y[i]]);
return ret;
}
