C1111133313331323223313331333133313331323133313331311331333121111221121123121   >>    C111113331333132322331333133313331333132313331333131133133312111122112112312   <<    C1111133313331323223313331333133313331323133313331311331333121111221121123123   >>      C1111133313331323223313331333133313331323133313331311331333121111221121123122   >>