B331133131323131133132233133313233313331323133211331333133313221123121   >>    B33113313132313113313223313331323331333132313321133133313331322112312   <<    B331133131323131133132233133313233313331323133211331333133313221123123   >>      B331133131323131133132233133313233313331323133211331333133313221123122   >>