t = int(input())
for _ in range(t):
	price = list(map(int, input().split()))
	s = input()
	mark = set()
	for i in range(len(s)):
		mark.add(ord(s[i]))
	ans = 0
	for i in range(len(price)):
		if ((i+97) not in mark):
			ans += price[i]
	print(ans)