#include "bits/stdc++.h"
using namespace std;

int dist[100][100];

int main() {
	int N;
	cin >> N;
	vector<int> S(N);
	for (int i = 0; i < N; i++)
	{
		cin >> S[i];
	}
	int M;
	cin >> M;
	for (int i = 0; i < N; i++)
	{
		for (int j = 0; j < N; j++)
		{
			dist[i][j] = 9999999;
		}
		dist[i][i] = 0;
	}
	
	for (int i = 0; i < M; i++)
	{
		int A, B, C;
		cin >> A >> B >> C;
		dist[A][B] = min(dist[A][B], C);
		dist[B][A] = dist[A][B];
	}

	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]);
			}
		}
	}

	int ans = (int)1e9;
	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;
}