#include<iostream>
#include<string>
#include<cstdio>
#include<vector>
#include<cmath>
#include<algorithm>
#include<functional>
#include<iomanip>
#include<queue>
#include<ciso646>
#include<random>
#include<map>
#include<set>
#include<complex>
#include<bitset>
#include<stack>
#include<unordered_map>
#include<utility>
#include<tuple>
using namespace std;
typedef long long ll;
typedef unsigned int ui;
const ll mod = 1000000007;
const ll INF = (ll)1000000007 * 1000000007;
typedef pair<int, int> P;
#define stop char nyaa;cin>>nyaa;
#define rep(i,n) for(int i=0;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define Rep(i,sta,n) for(int i=sta;i<n;i++)
#define Per(i,sta,n) for(int i=n-1;i>=sta;i--)
#define rep1(i,n) for(int i=1;i<=n;i++)
#define per1(i,n) for(int i=n;i>=1;i--)
#define Rep1(i,sta,n) for(int i=sta;i<=n;i++)
typedef long double ld;
typedef complex<ld> Point;
const ld eps = 1e-8;
const ld pi = acos(-1.0);
typedef pair<ll, ll> LP;

template<typename T>
void warshall_floyd(vector<vector<T>> &d){
    int n=d.size();
    for(int k=0;k<n;k++){
        for(int i=0;i<n;i++){
            for(int j=0;j<n;j++){
                d[i][j]=min(d[i][j],d[i][k]+d[k][j]);
            }
        }
    }
}

int n,m;
ll s[52];
vector<vector<ll>> d;

void solve(){
    cin >> n;
    rep(i,n){
        cin >> s[i];
    }
    cin >> m;
    d.resize(n,{});
    rep(i,n){
        rep(j,n){
            if (i==j) d[i].push_back(0);
            else d[i].push_back(INF);
        }
    }
    rep(i,m){
        int a,b,c;
        cin >> a >> b >> c;
        d[a][b]=c;
        d[b][a]=c;
    }
    warshall_floyd(d);
    ll ans=INF;
    rep(i,n){
        rep(j,n){
            //cout << i << " " << j << " " << d[i][j] << endl;
        }
    }
    Rep(i,1,n-1){
        Rep(j,i+1,n-1){
            //cout << i << " " << j << " " << d[i][j] << endl;
            ans=min(ans,min(d[0][i]+d[i][j]+d[j][n-1]+s[i]+s[j],d[0][j]+d[j][i]+d[i][n-1]+s[i]+s[j]));
        }
    }
    cout << ans << endl;
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout << fixed << setprecision(50);
    solve();
}