B3311331313231311331322331333132313331322331323133313331311331322122221   >>    B331133131323131133132233133313231333132233132313331333131133132212222   <<    B3311331313231311331322331333132313331322331323133313331311331322122223   >>      B3311331313231311331322331333132313331322331323133313331311331322122222   >>