#include<bits/stdc++.h>
#define rep(i,a,b) for(int i=int(a);i<int(b);++i)
using namespace std;
typedef long long ll;
int INF = (1LL << 29) - 1;
int MOD = 1e9+7;
main(){
    int N,M;
    cin >> N;
    vector<int>S(N);
    rep(i,0,N)cin >> S[i];
    ll dist[N][N];
    rep(i,0,N)rep(j,0,N)dist[i][j] = INF;
    rep(i,0,N)dist[i][i] = 0;
    cin >> M;
    rep(i,0,M){
        int a,b,c;
        cin >> a >> b >> c;
        dist[a][b] = dist[b][a] = c;
    }
    rep(i,0,N)rep(j,0,N)rep(k,0,N){
        dist[j][k] = min(dist[j][k], dist[j][i] + dist[i][k]);
    }
    ll mini = INF;
    rep(i,1,N-1)rep(j,1,N-1){
        if(i == j)continue;
        mini = min(mini, dist[0][i] + dist[i][j] + dist[j][N-1] + S[i] + S[j]);
    }

    cout << mini << endl;
}