N=int(input())
S=input()
A=list(map(int, input().split()))
Q=int(input())
K=list(map(int, input().split()))
E=[0]
e=0
if S=='W'*N:
    for i in range(Q):
        print(0)
    exit()
for i in S:
    if i=='E':
        e+=1 
    E.append(e)
for i in range(Q):
    hp=K[i]
    l,r=0,0
    hp-=A[0]
    e=E[r+1]-E[l]
    ans,d=0,0
    if hp>=0 and S[0]=='E':
        d+=1
        ans=1
    while r<N:
        if hp<0:
            l+=1
            hp+=A[l-1]
            if S[l-1]=='E':
                d-=1
        else:
            r+=1
            hp-=A[r]
            if S[r]=='E':
                d+=1
        if hp>=0:
            ans=max(d,ans)
            if r==N-1:
                print(ans)
                break