B331133131323131133132233133313231333132333133112311331323223121   >>    B33113313132313113313223313331323133313233313311231133132322312   <<    B331133131323131133132233133313231333132333133112311331323223123   >>      B331133131323131133132233133313231333132333133112311331323223122   >>