Trinh cute

using System;
using System.Collections.Generic;

public class Program
{
    class CongDan {
        String Hoten;
        public int Tuoi;
        String Diachi;
        int Nhietdo;

        public CongDan(String Hoten, int Tuoi, String Diachi, int Nhietdo) {
            this.Hoten = Hoten;
            this.Tuoi = Tuoi;
            this.Diachi = Diachi;
            this.Nhietdo = Nhietdo;
        }

        public bool kiemtra() {
            return this.Nhietdo > 37;
        }

        public void thongtin() {
            Console.WriteLine("Cong dan: " + this.Hoten + "\nTuoi: " + this.Tuoi + "\nDia chi: " + this.Diachi + "\nNhiet do: " + this.Nhietdo);
        }

    }

    public static void Main()
    {
        List<CongDan> Danhsach = new List<CongDan>();
        Console.WriteLine("Nhap lieu");
        Console.WriteLine("==================");
        for (int i = 0; i < 100; i++) {
            Console.WriteLine("Cong dan " + (i+1) + ":");
            Console.Write("Ho va ten: ");
            String Hoten = Console.ReadLine();
            Console.Write("Tuoi: ");
            int Tuoi = Convert.ToInt32(Console.ReadLine());
            Console.Write("Dia chi: ");
            String Diachi = Console.ReadLine();
            Console.Write("Nhiet do: ");
            int Nhietdo = Convert.ToInt32(Console.ReadLine());
            CongDan Congdan = new CongDan(Hoten, Tuoi, Diachi, Nhietdo);
            Danhsach.Add(Congdan);
            Console.WriteLine();
        }

        bool hasValue = false;
        Console.WriteLine("==================");
        Console.WriteLine();
        Console.WriteLine("Danh sach cong dan co nhiet do tren 37 do:");
        foreach (CongDan Congdan in Danhsach) {
            if (Congdan.kiemtra()) {
                Congdan.thongtin();
                hasValue = true;
            }
        }
        if (!hasValue) {
            Console.WriteLine("Khong co cong dan nao");
        }

        hasValue = false;
        Console.WriteLine("==================");
        Console.WriteLine();
        Console.WriteLine("Danh sach cong dan tren 35 tuoi:");

        foreach (CongDan Congdan in Danhsach) {
            if (Congdan.Tuoi > 35) {
                hasValue = true;
                Congdan.thongtin();
            }
        }

        if (!hasValue) {
            Console.WriteLine("Khong co cong dan nao");
        }
    }
}