B3311331313231311331322331333132313331322331323133313311211113313112332212321   >>    B331133131323131133132233133313231333132233132313331331121111331311233221232   <<    B3311331313231311331322331333132313331322331323133313311211113313112332212323   >>      B3311331313231311331322331333132313331322331323133313311211113313112332212322   >>