using System;

​

public class Sv {

     private int MSSV;

     private string name;

     private double DHT;

     public int GetMSSV(){

        return this.MSSV;

     }

    public void SetMSSV(int MSSV) {

        this.MSSV = MSSV;

    }

    public string GetName(){

        return this.name;

    }

    public void SetName(string name) {

        this.name = name;

    }

    public double GetDHT() {

        return this.DHT;

    }

    public void SetDHT(double DHT) {

        return this.DHT;

    }

    public Sv(){

    }

    public Sv(Sv sv) {

    this.MSSV = MSSV;

    this.name = name;

    this.DHT = DHT;

    }

}   

​

public class Program

{

    public static void Main()

    {

    }

}