class T1
{
}

class T0
{
}

class BB< W, X, Y >
{
    X a = null;
    Y b = null;
    W c = null;
}

class AA<a, b> extends BB< T0, CC<A, B>, T1 >
{
    A a = null;
    B b = null;
}

class otth21
{
}