def fib(n)
  return n if n < 2
  vals = [0, 1]
  (n-1).times do
    vals.push(vals[-1] + vals[-2])
  end
  return vals
end


puts "\n enter a number integer or float to calculate the Fibonacci sequence"
num = gets.chomp.to_i

loop do |n|
puts fib(n)
break if vals >= num.to_i
end

puts "you have reached your destination"