# 累積和をHP分、敵カウント分
# k以下の探索はbisect
# これで間に合うか?

N = int(input())
S = input()
A = list(map(int, input().split()))

HP_cumu = [0]
hp_temp = 0
enemy_cumu = [0]
enemy_temp = 0
for i in range(N):
    hp_temp += A[i]
    HP_cumu.append(hp_temp)
    if S[i] == 'E':
        enemy_temp += 1
    enemy_cumu.append(enemy_temp)
    
Q = int(input())
K = list(map(int, input().split()))
from bisect import *
for q in range(Q):
    k = K[q]
    ans = 0
    for i in range(N):
        start = HP_cumu[i]
        target = start+k
        idx = bisect_left(HP_cumu, target+1)-1
        calc = enemy_cumu[idx]-enemy_cumu[i]
        ans = max(ans, calc)
    print(ans)