With the only difference that the Right time running HWH Mail via ALD OT late running HWH Mail, after sme stations...
Just guess the chaos @ passenger end...totally in fuss as whch is whom..board r nt to....& if misjudged, can alight @ next station to board-in again!!
And nw for this mail, the scene would b like: the first train is Mail & next too is Mail only!!