B3311331313231311331322331333132313331322331323133313331313331333133311121   >>    B331133131323131133132233133313231333132233132313331333131333133313331112   <<    B3311331313231311331322331333132313331322331323133313331313331333133311123   >>      B3311331313231311331322331333132313331322331323133313331313331333133311122   >>