B3311331313231311331322331333132333133313231332113313331333132323132221   >>    B331133131323131133132233133313233313331323133211331333133313232313222   <<    B3311331313231311331322331333132333133313231332113313331333132323132223   >>      B3311331313231311331322331333132333133313231332113313331333132323132222   >>