B3311331313231311331322331333132313331322331323133313331311212111133212221   >>    B331133131323131133132233133313231333132233132313331333131121211113321222   <<    B3311331313231311331322331333132313331322331323133313331311212111133212223   >>      B3311331313231311331322331333132313331322331323133313331311212111133212222   >>