#include<bits/stdc++.h>
using namespace std;
using ll = long long;
int main(){
    int n;
    cin>>n;
    vector<vector<ll> > c(n,vector<ll>(n,(ll)1e9));
    vector<ll> s(n);
    for(int i = 0;i<n;i++) cin>>s[i];
    int m;
    cin>>m;
    for(int i = 0;i<m;i++){
        int u,v;
        ll cost;
        cin>>u>>v>>cost;
        c[u][v] = cost;
        c[v][u] = cost;
    }
    for(int k = 0;k<n;k++){
        for(int i = 0;i<n;i++){
            for(int j = 0;j<n;j++){
                c[i][j] = min(c[i][j],c[i][k]+c[k][j]);
            }
        }
    }
    ll ans = (ll)1e9;
    for(int i = 1;i<n-1;i++){
        for(int j = 1;j<n-1;j++){
            if(i==j) continue;
            ll now = c[0][i] + c[i][j] + c[j][n-1];
            now += s[i] + s[j];
            ans = min(ans,now);
        }
    }
    cout<<ans<<endl;
}