B3311331313231311331322331333132333133313231332113313331333133313311223321   >>    B331133131323131133132233133313233313331323133211331333133313331331122332   <<    B3311331313231311331322331333132333133313231332113313331333133313311223323   >>      B3311331313231311331322331333132333133313231332113313331333133313311223322   >>