#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	int n;
	cin >> n;
	vector<int>a(n);
	for (int i = 0; i < n; i++) {
		cin >> a[i];
	}
	int m;
	cin >> m;
	vector<vector<int>>dp(n + 1, vector<int>(n + 1, 1e9));
	for (int i = 0; i < m; i++) {
		int u, v, c;
		cin >> u >> v >> c;
		dp[u][v] = c;
		dp[v][u] = c;
	}
	for (int i = 0; i < n; i++)dp[i][i] = 0;
	for (int k = 0; k < n; k++) {
		for (int i = 0; i < n; i++) {
			for (int j = 0; j < n; j++) {
				dp[i][j] = min(dp[i][j], dp[i][k] + dp[k][j]);
			}
		}
	}
	int ans = 1e9;
	for (int i = 1; i < n - 1; i++) {
		for (int j = 1; j < n - 1; j++) {
			if (i != j) {
				ans = min(a[i] + a[j] + dp[0][i] + dp[i][j] + dp[j][n - 1], ans);
			}
		}
	} cout << ans << endl;
}