B331133131323131133132233133313231333132233132313331333132212323311221   >>    B33113313132313113313223313331323133313223313231333133313221232331122   <<    B331133131323131133132233133313231333132233132313331333132212323311223   >>      B331133131323131133132233133313231333132233132313331333132212323311222   >>