C23221211113313331233133313331312111112111133313331211111333133313232233312121   >>    C2322121111331333123313331333131211111211113331333121111133313331323223331212   <<    C23221211113313331233133313331312111112111133313331211111333133313232233312123   >>      C23221211113313331233133313331312111112111133313331211111333133313232233312122   >>