using System;

public class Program

{

    public static void Main()

    {

        Person person = new Person(Console.ReadLine(), Console.ReadLine(), int.Parse(Console.ReadLine()), int.Parse(Console.ReadLine()));

        person.IncreaseSalary(int.Parse(Console.ReadLine()));

    }

}

public class Person

{

    private string firstName;

    private string lastName;

    private int age;

    private int salary;

    public string FirstName

    {

        get { return this.firstName; }

        set { this.firstName = value; }

    }

    public string LastName

    {

        get { return this.lastName; }

        set { this.lastName = value; }

    }

    public int Age

    {

        get { return this.age; }

        set { this.age = value; }

    }

    public int Salary

    {

        get { return this.salary; }

        set { this.salary = value; }

    }

    public Person(string firstName, string lastName, int age, int salary)

    {

        this.FirstName = firstName;

        this.LastName = lastName;

        this.Age = age;

        this.Salary = salary;

    }

    public void IncreaseSalary(int percent)

    {

        if (this.age >=30)

        {

            this.salary=this.salary * (percent/100);

            Console.WriteLine("New salary: {0}", this.Salary);

        }

        else

        {

            Console.WriteLine("new salary: {0}", salary*=(percent/2)/100);

        }

    }

}