B331133131323131133132233133313231313231333132322331323132313232213123121   >>    B33113313132313113313223313331323131323133313232233132313231323221312312   <<    B331133131323131133132233133313231313231333132322331323132313232213123123   >>      B331133131323131133132233133313231313231333132322331323132313232213123122   >>