First stage take the number of letters on the first row of the sign you have arrived to.
Hint: The first line begins with a "N"
Take this number and Find the following
AA =(Number of Letters) * 2 Subtract 5
BBB =(Number of Letters) * 34
CC=(Number of Letters) * 2 Subtract 1
DDD=(Number of Letters) * 60 Add 27
N 39 AA.BBB W 76 CC.DDD
The Question is what number do you get when you take the year of the graduation class that purchased the statue multiplied by the number of alligator teeth the statue has then divide that number by 18.
(Year) + (Number of Teeth) / 18.
EE=(ANSWER) * 2
FFF=(ANSWER) + (ANSWER) + 634
GG=(ANSWER) * 2 + 7
HHH=(ANSWER) * 65 + 1
N 39 EE.FFF W 76 GG.HHH