using System;
using System.Runtime.Serialization;
[Serializable]
  public class Country
  {
  public String name;
  public String region;
  public int area;
  public long pop;
  public long gdp;
  public Country(String name,String region,
                  int area,long pop,long gdp)
  {
    this.name=name;
    this.region=region;
    this.area=area;
    this.pop=pop;
    this.gdp=gdp;
  }
}