3.rb

# 3. Given an number, return a string which contains varying amounts of the word 'MEGA' depending on the given number's order of magnitude.
# If the number is less than 100, return "not a mega milestone".
# Otherwise, start with the string "MEGA milestone".
# For every order of magnitude over 100 that the number is, add the word "MEGA" to the start of the string.
# See the examples below for further clarification!

# Examples
# how_mega_is_it(54) ➞ "not a mega milestone"
# how_mega_is_it(143) ➞ "MEGA milestone"
# how_mega_is_it(1000) ➞ "MEGA MEGA milestone"
# how_mega_is_it(9999.9) ➞ "MEGA MEGA milestone"

# how_mega_is_it(10000) ➞ "MEGA MEGA MEGA milestone"

class Megaaa
  def hello a 
    num = a.to_i
    if num < 100
      "not a mega milestone"
    else
      str = num.to_s
      megaa = str.length-2
      " MEGA" * megaa + " milestone"
    end
  end
end
 
puts Megaaa.new.hello 54   
puts Megaaa.new.hello 143  
Megaaa.new.hello 1000  
Megaaa.new.hello 9999.9  
Megaaa.new.hello 10000