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

teki = [0] * (N + 1)
for i in range(N):
    teki[i+1] = teki[i]
    if S[i] == "E":
        teki[i+1] += 1
def calc(k):
    right = 0
    now = 0
    ans = 0
    for left in range(N):
        while right < N and now + A[right] <= k:
            now += A[right]
            right += 1
        count = teki[right] - teki[left]
        if count > ans:
            ans = count
        if left == right:
            right += 1
        else:
            now -= A[left]
    return ans
Q = int(input())
K = list(map(int,input().split()))
for k in K:
    print(calc(k))