My two cents go with option 2, option 3 even. IMHO not being able to
use commas for input is crippling and discarding them altogether even
for output could be very counter productive.
Talha
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"Remember not only to say the right thing in the right place, but far
more difficult still, to leave unsaid the wrong thing at the tempting
moment." - Benjamin Franklin (1706-1790)
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