#include <bits/stdc++.h>
using namespace std;
//#include <atcoder/all>
//using namespace atcoder;
using ll=long long;
using Graph=vector<vector<int>>;
#define MAX 1000000
#define MOD 1000000009
//#define MOD 998244353
//#define INF 1000000000
#define INF 1000000000000000000

int main(){
  int N;
  cin>>N;
  vector<ll> S(N);
  for(int i=0;i<N;i++){
    cin>>S[i];
  }
  vector<vector<ll>> dist(N,vector<ll>(N,INF));
  int M;
  cin>>M;
  for(int i=0;i<M;i++){
    int a,b;
    ll c;
    cin>>a>>b>>c;
    dist[a][b]=min(dist[a][b],c);
    dist[b][a]=min(dist[b][a],c);
  }
  for(int k=0;k<N;k++){
    for(int i=0;i<N;i++){
      for(int j=0;j<N;j++){
        dist[i][j]=min(dist[i][j],dist[i][k]+dist[k][j]);
      }
    }
  }

  ll ans=INF;
  for(int i=1;i<N-1;i++){
    for(int j=1;j<N-1;j++){
      if(i==j){
        continue;
      }
      ans=min(ans,dist[0][i]+dist[i][j]+dist[j][N-1]+S[i]+S[j]);
    }
  }
  cout<<ans<<endl;
}