Re:Get used to it (Score 1)

Good point, but fortunately this has been thought of. The next digit after the birthday is "+" if you are born in 18XX, "-" if you are born in 19XX or "A" if you are born in 20XX, probably "B" if you are born in 21XX and so on.

However, problems may occur if a programmer has taken a tempting shortcut and ignored this digit assuming everybody was born in 19XX.