a a_a a AaAaN
a a a (N
    AaAa,N
    AaAa,N
    AaAa,N
    AaAa, AaAaAaN
)N
a a.a.a.a a (N
    AaAaAaAa,N
    AaAaAaN
)N
N
a a.a.a.a a Aa, AaN
N
N
a Aa(AaAa):N
    a = AaAa('Aa')N
    a = AaAa('Aa')N
    a = AaAaAa('Aa')N
    a = AaAa('Aa')N
    # a = AaAaAaAa(N
    #     'Aa',N
    #     a_a=a: Aa.a.a()N
    # )N
