using System;

namespace MyCompiler {
    class Program {
        public static void Main(string[] args) {
            Console.WriteLine("HI");
            {
                Console.WriteLine("12.01.2026");
                {
                    Console.WriteLine("Anup Kumar Tirkey is a Mechanical Engr.");
                    {
                        Console.WriteLine(Math.Sqrt(81));
                        {
                            Console.WriteLine(Math.Pow(3,5));
                            {
                            if (20>18){
                                Console.WriteLine("today is monday");
                                }
                                {
                                    for(int i = 0; i<5;i++)
                                    {
                                        Console.WriteLine(i);
                                    }
                                    {
                                        for (int j= 0; j<7;j++)
                                        {
                                            Console.WriteLine(j);
                                        }
                                        for(int k=0;k<9;k++)
                                        {
                                            Console.WriteLine(k);
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
            }
        }
    }