The teacher gave Daxiong a math problem: "How many natural numbers from 1 to 600 are there without the number 5?" Daxiong thought for a long time and couldn't figure it out. He asked Doraemon, and Doraemon got the correct answer at once. Smart boy, do you know the answer?

Answer;

Hundreds of people are in .............................................. at 5: 500.

The ten digits are 5: 50,51,52,53,54,55. .......................................................................................................................................

The unit number is 5, but the hundred digits and the ten digits are not 5: 5, 15, 25, 35, 45, 65, 75, 85, 95. ..............................................................................................................

So there are 600-( 1+60+55)=484 numbers without 5 in 65438-600.