B331133131323131133132233133313231333132233132313331333112211232321123121   >>    B33113313132313113313223313331323133313223313231333133311221123232112312   <<    B331133131323131133132233133313231333132233132313331333112211232321123123   >>      B331133131323131133132233133313231333132233132313331333112211232321123122   >>