using System;
class Employee {
  public  string firstName {get; set;} //getters and setters for the values
    public string lastName{get, set};
    private decimal yearlySalary;

  public Employee(string firstName, string lastName, decimal monthlySalary) //constructor
  {
    FirstName = firstName;
    LastName = lastName;
    Salary = yearlySalary;
   }
   public decimal yearlySalary{
     get {return yearlySalary;}
     set{
       if(value>=0)
       yearlySalary = value;
     }
     }
   }