import bisect
N = int(input())
S = input()
lsA = list(map(int,input().split()))
Q = int(input())
lsK = list(map(int,input().split()))

ll = [0]
for i in range(N):
    if S[i] == 'E':
        ll.append(ll[-1]+1)
    else:
        ll.append(ll[-1])

lssum = [0]
for i in range(N):
    lssum.append(lssum[-1]+lsA[i])

for i in range(Q):
    q = lsK[i]
    ans = 0
    for j in range(1,N+1):
        d = lssum[j]
        v = d - q
        ind = bisect.bisect_left(lssum, v)
        ecnt1 = ll[j]-ll[ind]

        d = lssum[j-1]
        v = d+q
        ind = bisect.bisect_right(lssum, v)
        ecnt2 = ll[ind-1]-ll[j-1]
        ans = max(ans,ecnt1,ecnt2)
    print(ans)