B3311331313231311331322331333132313331323133211331333133313221212111   >>    B331133131323131133132233133313231333132313321133133313331322121211   <<    B3311331313231311331322331333132313331323133211331333133313221212113   >>      B3311331313231311331322331333132313331323133211331333133313221212112   >>