A.B.C.C.CD.A.BC.B.D Im sure
54289 = 233^2
You know the last digit of the squared number is 3 or 7, so just try numbers ending with those from 220 to 250
Have you ever done community service or helped lead a big project? Even just some nice things you've done for your school.
(i can only think of 1 right now sorry)
The government (or whoever is handling the situation) can better plan for the growth because the exponent isn't random every time it multiplies.