B331133131323131133132233133313113313331323211231133133313331311   >>    B33113313132313113313223313331311331333132321123113313331333131   <<    B331133131323131133132233133313113313331323211231133133313331313   >>      B331133131323131133132233133313113313331323211231133133313331312   >>