lista = ['a','a','a','a','a']
listb = ['b','b','b']
A = len(lista)
B = len(listb)
s = ''
for i in range(N):
    if s == '':
        s = 'ok'
        continue
    s = ''
    if i%A == 0:
        s = 'Fizz'
    if i%B == 0:
        s = s+'Buzz'
    if s == '':
        s = i
    print(s)