import bisect
N = int(input())
S = input()
A = [int(a) for a in input().split()]
Q = int(input())
K = [int(k) for k in input().split()]

for i in range(N-1):
    A[i+1] += A[i]
A = [0] + A

enemy = [0]*(N+1)
for i in range(N):
    if S[i] == "E":
        enemy[i+1] = 1
    enemy[i+1] += enemy[i]

for k in K:
    ans = 0
    for i in range(N):
        idx = bisect.bisect_right(A, k+A[i])
        ans = max(ans, enemy[idx-1]-enemy[i])
    print(ans)