//
//	If score>=90 out "A grade of A"
//	otherwise, out "B or below"
//

import java.util.Scanner;

class VoteOrNot
{
	public static void main(String[] args)
	{
			Scanner input = new Scanner(System.in);

			double age;

			System.out.print("Your age: ");
			age = input.nextDouble();

			if (age>=18)
			{
				System.out.println("You can vote.\n\n\n");
			}
			else
			{
				double time = 18-age;
				System.out.println("You can't vote. Wait for " + time + " years.\n\n\n");
			}
	}
}