B331133131323131133132233133313231333132233132313331333132233131133131221   >>    B33113313132313113313223313331323133313223313231333133313223313113313122   <<    B331133131323131133132233133313231333132233132313331333132233131133131223   >>      B331133131323131133132233133313231333132233132313331333132233131133131222   >>