C3123223313331322121111331333133313331333121211111211111333132233221211   >>    C312322331333132212111133133313331333133312121111121111133313223322121   <<    C3123223313331322121111331333133313331333121211111211111333132233221213   >>      C3123223313331322121111331333133313331333121211111211111333132233221212   >>