import os

def main():
	songs = []
	userIn = "5"
	while(userIn != ""):
		userIn = input("Youtube URL: ")
		if(userIn == ""):
			break
		songs.append(userIn)
	for s in songs:
		os.system('youtube-dl -x --audio-format mp3 ' + s)
	print("Program Complete!")

if __name__ == '__main__':
	main()