C1111133313331323223313331333133313331333131211113313331323133313123123121   >>    C111113331333132322331333133313331333133313121111331333132313331312312312   <<    C1111133313331323223313331333133313331333131211113313331323133313123123123   >>      C1111133313331323223313331333133313331333131211113313331323133313123123122   >>