B3311331313231311331322331333132313331322331323133313311232313233231131   >>    B331133131323131133132233133313231333132233132313331331123231323323113   <<    B3311331313231311331322331333132313331322331323133313311232313233231133   >>      B3311331313231311331322331333132313331322331323133313311232313233231132   >>