using System;

namespace ZC;

public interface IPerson
{
    string name { get; }
    int age { get; }
}

file class Person : IPerson
{
    public string name { get;  set; }
    public int age { get;  set; }
}

public class PersonManager
{
    public static IPerson CreatePerson(string name, int age)
    {
        return new Person
        {
            name = name,
            age = age
        };
    }
}