D33131112113313231333133313331333131133132313231322331322331323212121   >>    D3313111211331323133313331333133313113313231323132233132233132321212   <<    D33131112113313231333133313331333131133132313231322331322331323212123   >>      D33131112113313231333133313331333131133132313231322331322331323212122   >>