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require 'pry'
require 'pry-byebug'

def get_even_numbers_from_zero_to(number)

  numbers = []

  (0..9).each do |number|
    numbers << number if (number % 2 == 0)
  end

  return numbers

end


def look_for(number, numbers)

  found = -1
  numbers.each_with_index do |array_number, index|
    found = index if array_number == number
  end

  return found

end


def print_found(number, index)

  # binding.pry # You can use this anywhere in this program to pause and explore things like variables. Try it out.

  if index >= 0
    puts "Found number #{number} at index #{index}!"
  else
    puts "Did not find the number #{number} in the array. :("
  end

end


def find_number(number, numbers)
  found_at_index = look_for(number, numbers)
  print_found(number, found_at_index)
end
  

numbers = get_even_numbers_from_zero_to(9)

find_number(3, numbers)
find_number(6, numbers)