import java.util.*;

public class Main {
	public static void main (String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int[] stays = new int[n];
		int[][] costs = new int[n][n];
		for (int i = 0; i < n; i++) {
		    Arrays.fill(costs[i], Integer.MAX_VALUE / 3);
		    costs[i][i] = 0;
		    stays[i] = sc.nextInt();
		}
		int m = sc.nextInt();
		for (int i = 0; i < m; i++) {
		    int a = sc.nextInt();
		    int b = sc.nextInt();
		    int c = sc.nextInt();
		    costs[a][b] = c;
		    costs[b][a] = c;
		}
		for (int i = 0; i < n; i++) {
		    for (int j = 0; j < n; j++) {
		        for (int k = 0; k < n; k++) {
		            costs[j][k] = Math.min(costs[j][k], costs[j][i] + costs[i][k]);
		        }
		    }
		}
		int min = Integer.MAX_VALUE;
		for (int i = 1; i < n - 1; i++) {
		    for (int j = 1; j < n - 1; j++) {
		        if (i == j) {
		            continue;
		        }
		        min = Math.min(min, costs[0][i] + costs[i][j] + costs[j][n - 1] + stays[i] + stays[j]);
		    }
		}
		System.out.println(min);
	}
}