B331133131323131133132233133313231333132233132313331333131231211111212232311   >>    B33113313132313113313223313331323133313223313231333133313123121111121223231   <<    B331133131323131133132233133313231333132233132313331333131231211111212232313   >>      B331133131323131133132233133313231333132233132313331333131231211111212232312   >>