B331133131323131133132233133313231333132313132322331323133313232211313311221   >>    B33113313132313113313223313331323133313231313232233132313331323221131331122   <<    B331133131323131133132233133313231333132313132322331323133313232211313311223   >>      B331133131323131133132233133313231333132313132322331323133313232211313311222   >>