printing.rb

# version 1

for counter in 1..100
  if (counter % 3 == 0) && (counter % 5 == 0)
  puts 'Trakstar'
  elsif (counter % 3 == 0)
    puts 'Trak'
  elsif (counter % 5 == 0)
    puts 'Star'
  else
    puts counter
  end
end

# version 2

counter = 1
while counter <= 100
  if (counter % 3 == 0) && (counter % 5 == 0)
  puts 'Trakstar'
  elsif (counter % 3 == 0)
    puts 'Trak'
  elsif (counter % 5 == 0)
    puts 'Star'
  else
    puts counter
  end
  counter += 1
end

# nerd version

(1..100).each { |number|
 op = []
 if number%3==0
  op.push("Trak")
 end
 if number%5==0
  op.push("Star")
 end
 puts op.size > 0 ? op.join("") : number.to_s
}