#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for (int i = 0; i < n; ++i)
using ll = long long;
using P = pair<int,int>;
const long long MAX = 100, INF = 1e10, WHITE = 0, GRAY = 1, BLACK = 2;
long long n, M[MAX][MAX];
void init(){
    for (int i = 0; i < n; i++)
        for (int j = 0; j < n; j++)M[i][j] = INF;
}
int main() {
   cin>>n;
   init();
   vector<ll>s(n);
   rep(i,n)cin>>s[i];
   int m;cin>>m;
   rep(i,m){
      int a,b,c;cin>>a>>b>>c;
      M[a][b]=c;
      M[b][a]=c;
   }
   for (int i = 0; i < n; i++)
      M[i][i] = 0;
   for (int k = 0; k < n; k++){
      for (int i = 0; i < n; i++){
         if (M[i][k] == INF)continue;
         for (int j = 0; j < n; j++){
               if (M[k][j] == INF) continue;
               M[i][j] = min(M[i][j], M[i][k] + M[k][j]);
         }
      }
   }
   rep(i,4){
      rep(j,4)cout<<M[i][j]<<" ";
      cout<<endl;
   }
   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,s[i]+s[j]+M[0][i]+M[i][j]+M[j][n-1]);
      }
   }
   cout<<ans<<endl;
}