B3311331313231311331322331333132313331322331323133313331312111111223131   >>    B331133131323131133132233133313231333132233132313331333131211111122313   <<    B3311331313231311331322331333132313331322331323133313331312111111223133   >>      B3311331313231311331322331333132313331322331323133313331312111111223132   >>