B3311331313231311331322331333132313331322331323133313231331121133132313211111   >>    B331133131323131133132233133313231333132233132313331323133112113313231321111   <<    B3311331313231311331322331333132313331322331323133313231331121133132313211113   >>      B3311331313231311331322331333132313331322331323133313231331121133132313211112   >>