N = int(input())
S = input().strip()
A = list(map(int,input().split()))
Q = int(input())
K = list(map(int,input().split()))
BS = [0 for _ in range(N+1)]
for i in range(1,N+1):
    if S[i-1]=="E":
        BS[i] = BS[i-1]+1
    else:
        BS[i] = BS[i-1]
BA = [0 for _ in range(N+1)]
for i in range(1,N+1):
    BA[i] = BA[i-1]+A[i-1]
for j in range(Q):
    k = K[j]
    cmax = 0
    for i in range(N):
        high = N
        low = i
        while high-low>1:
            mid = (high+low)//2
            if mid+1<=N and BA[mid+1]-BA[i]>k:
                high = mid
            else:
                low = mid
        ind = high
        cnt = BS[high]-BS[i]
        cmax = max(cmax,cnt)
    print(cmax)