B331133131323131133132233133313113313331323223331212121111121121   >>    B33113313132313113313223313331311331333132322333121212111112112   <<    B331133131323131133132233133313113313331323223331212121111121123   >>      B331133131323131133132233133313113313331323223331212121111121122   >>