N = int(input())

from scipy.sparse.csgraph import shortest_path

import numpy as np

S = np.array([int(input()) for i in range(N)])

D = np.zeros((N, N), dtype=int)

M = int(input())

for i in range(M):
    a, b, c = map(int, input().split())
    
    D[a, b] = c
    D[b, a] = c
    
X = shortest_path(D, directed=False)

from itertools import permutations

ans = 10 ** 9

for i, j in permutations(range(1, N - 1), r=2):
    
    ans = min(ans, S[i] + S[j] + X[0, i] + X[i, j] + X[j, N - 1])
print(int(ans))