B3311331313231311331322331333132333133313231332113313331333132313111323221321   >>    B331133131323131133132233133313233313331323133211331333133313231311132322132   <<    B3311331313231311331322331333132333133313231332113313331333132313111323221323   >>      B3311331313231311331322331333132333133313231332113313331333132313111323221322   >>