D33131112113313231333133313331333131133132313231322331313223313221211   >>    D3313111211331323133313331333133313113313231323132233131322331322121   <<    D33131112113313231333133313331333131133132313231322331313223313221213   >>      D33131112113313231333133313331333131133132313231322331313223313221212   >>