B331133131323131133132233133313231333132233132313331333132233131133132213113121   >>    B33113313132313113313223313331323133313223313231333133313223313113313221311312   <<    B331133131323131133132233133313231333132233132313331333132233131133132213113123   >>      B331133131323131133132233133313231333132233132313331333132233131133132213113122   >>