import java.io.*;
import java.util.*;
import java.util.stream.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        int[] prices = new int[n];
        int[][] costs = new int[n][n];
        for (int i = 0; i < n; i++) {
            prices[i] = sc.nextInt();
            Arrays.fill(costs[i], Integer.MAX_VALUE / 2);
            costs[i][i] = 0;
        }
        int m = sc.nextInt();
        for (int i = 0; i < m; i++) {
            int left = sc.nextInt();
            int right = sc.nextInt();
            int x = sc.nextInt();
            costs[left][right] = x;
            costs[right][left] = x;
        }
        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]);
                }
            }
        }
        long ans = Long.MAX_VALUE;
        for (int i = 1; i < n - 1; i++) {
            for (int j = 1; j < n - 1; j++) {
                if (i == j) {
                    continue;
                }
                ans = Math.min(ans, 0L + costs[0][i] + costs[i][j] + costs[j][n - 1] + prices[i] + prices[j]);
            }
        }
        System.out.println(ans);
    }
    
}

class Utilities {
    static String arrayToLineString(Object[] arr) {
        return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n"));
    }
    
    static String arrayToLineString(int[] arr) {
        return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new));
    }
}
class Scanner {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() throws Exception {
        
    }
    
    public int nextInt() throws Exception {
        return Integer.parseInt(next());
    }
    
    public long nextLong() throws Exception {
        return Long.parseLong(next());
    }
    
    public double nextDouble() throws Exception {
        return Double.parseDouble(next());
    }
    
    public int[] nextIntArray() throws Exception {
        return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray();
    }
    
    public String next() throws Exception {
        while (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
    
}