B3311331313231311331322331333132313331322331323133313331312112331323211221   >>    B331133131323131133132233133313231333132233132313331333131211233132321122   <<    B3311331313231311331322331333132313331322331323133313331312112331323211223   >>      B3311331313231311331322331333132313331322331323133313331312112331323211222   >>