from itertools import accumulate
from bisect import bisect_right

def main():
    N = int(input())
    S = input()
    A = list(map(int, input().split()))
    Q = int(input())
    K = list(map(int, input().split()))
    B = [0] + list(accumulate(A))
    C = [0] * (N + 1)
    for i in range(N):
        if S[i] == 'E':
            C[i+1] = C[i] + 1
        else:
            C[i+1] = C[i]

    P = [float('inf')] * (max(C) + 1)
    for i in range(N+1):
        for j in range(i+1,N+1):
            P[C[j]-C[i]] = min(P[C[j]-C[i]], B[j]-B[i])
    for k in K:
        d = bisect_right(P,k)
        print(max(0,d-1)) 



if __name__ == "__main__":
    main()