C111113331333132322331333133313331311233132212111133131133132232121   >>    C11111333133313232233133313331333131123313221211113313113313223212   <<    C111113331333132322331333133313331311233132212111133131133132232123   >>      C111113331333132322331333133313331311233132212111133131133132232122   >>