import java.util.Scanner;
public class laba1_2
{
    public static void main(String[] args)
    {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter your age: ");
        boolean IsCorrect = false;
        int age = 0;
        do {
            String str_age = in.next();
            if (str_age.matches("[0-9]+"))
            {
                age = Integer.parseInt(str_age);
                break;
            }
            else
                {
                System.out.print(" Incorrect data entered ");
                IsCorrect = false;
                }
            }
        while (!IsCorrect) ;
        if (age >= 18 && age < 100)
        {
            System.out.print("You have the right to vote");
        } else if
        (age < 18 && age > 0)
        {
            age = 18 - age;
            System.out.print("The number of years after which you can vote - " + age);
        } else {
            System.out.print(" Incorrect data entered ");
        }
    }
}