d = int(input())
r = a = e = d 
b = 0
for c in input() + input():
    if c == 'o':
        if e > 0:
            b = a
            a = e = 0
        a += 1
        r = max(r, a+b)
    else:
        if e < d:
            a += 1
            e += 1
            r = max(r, a)
        else:
            a = d
    print(a, b, e)
r = max(r, a+d-e)
print(r)