io.write_line("Guess the number.")

secret_number = int.random_range(0..100)

loop {
	io.write_line("Input your guess.")

	input = io.read_line() ? io.write_line("Failed to read input.")
	guess = int.parse(input) ? io.write_line("Failed to parse input.")

	if guess < secret_number {
		io.write_line("Too low!")
	} else if guess > secret_number {
		io.write_line("Too high!")
	} else {
		io.write_line("You win!")
		break
	}
}