B3311331313231311331322331333132313331323133313233313233313221131   >>    B331133131323131133132233133313231333132313331323331323331322113   <<    B3311331313231311331322331333132313331323133313233313233313221133   >>      B3311331313231311331322331333132313331323133313233313233313221132   >>