D33131112113313231333133313233313231333132333132322331333132313223121   >>    D3313111211331323133313331323331323133313233313232233133313231322312   <<    D33131112113313231333133313233313231333132333132322331333132313223123   >>      D33131112113313231333133313233313231333132333132322331333132313223122   >>