B3311331313231311331322331333132313331322331323133313331331123121111122121   >>    B331133131323131133132233133313231333132233132313331333133112312111112212   <<    B3311331313231311331322331333132313331322331323133313331331123121111122123   >>      B3311331313231311331322331333132313331322331323133313331331123121111122122   >>