C111113331333132322331333133313331311331322331333131133131121131121121   >>    C11111333133313232233133313331333131133132233133313113313112113112112   <<    C111113331333132322331333133313331311331322331333131133131121131121123   >>      C111113331333132322331333133313331311331322331333131133131121131121122   >>