Yes, the examples about Y9 etc I understood because the system does not yield more than one digit and 9 is the maximum. But is 4 the maximum for first class? If so, why?
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by fakecd:
To be specific in analogy, it would be
Y9 B9 H9 K9 M9 L9 S9 V9 N9 O9 Q9
so 9 x 11 = 99 seats out of 300+ seats.
I'm not trying to be snobby, just making it very clear for IncyWincy. 
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