B331133131323131133132233133313231333132233132313331333133313113313332213223121   >>    B33113313132313113313223313331323133313223313231333133313331311331333221322312   <<    B331133131323131133132233133313231333132233132313331333133313113313332213223123   >>      B331133131323131133132233133313231333132233132313331333133313113313332213223122   >>