# Aa a Aa 0.0 a 0-0-0 0:0N
N
a a.a a a, aN
N
N
a Aa(a.Aa):N
N
    a = AaN
N
    a = [N
    ]N
N
    a = [N
        a.AaAa(N
            a='Aa',N
            a=[N
                ('a', a.AaAa(a_a=Aa, a_a=Aa, a=Aa, a_a='A')),N
                ('Aa_Aa', a.AaAa()),N
                ('Aa', a.AaAa(a_a=0)),N
                ('Aa', a.AaAa(a_a=0)),N
                ('Aa_a_a', a.AaAa()),N
                ('Aa', a.AaAa()),N
            ],N
        ),N
        a.AaAa(N
            a='Aa',N
            a=[N
                ('a', a.AaAa(a_a=Aa, a_a=Aa, a=Aa, a_a='A')),N
                ('Aa_A', a.AaAa()),N
                ('Aa', a.AaAa(a_a=0)),N
            ],N
        ),N
    ]N
