B331133131323131133132233133313231333132233132313331333132331222121   >>    B33113313132313113313223313331323133313223313231333133313233122212   <<    B331133131323131133132233133313231333132233132313331333132331222123   >>      B331133131323131133132233133313231333132233132313331333132331222122   >>