B3311331313231311331322331333132313331323223312113313331333133313231121131331   >>    B331133131323131133132233133313231333132322331211331333133313331323112113133   <<    B3311331313231311331322331333132313331323223312113313331333133313231121131333   >>      B3311331313231311331322331333132313331323223312113313331333133313231121131332   >>