B3311331313231311331322331333132313331323131323223313232211211112331   >>    B331133131323131133132233133313231333132313132322331323221121111233   <<    B3311331313231311331322331333132313331323131323223313232211211112333   >>      B3311331313231311331322331333132313331323131323223313232211211112332   >>