C111113331333132322331333133313331323133313233213133313331311123121   >>    C11111333133313232233133313331333132313331323321313331333131112312   <<    C111113331333132322331333133313331323133313233213133313331311123123   >>      C111113331333132322331333133313331323133313233213133313331311123122   >>