B3311331313231311331322331333132313331322331323133313331331123121111112221   >>    B331133131323131133132233133313231333132233132313331333133112312111111222   <<    B3311331313231311331322331333132313331322331323133313331331123121111112223   >>      B3311331313231311331322331333132313331322331323133313331331123121111112222   >>