using System;

//using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        string sentence = "thequickbrownfoxjumpsoverthelazydog";

        Console.WriteLine(CheckIfPangram(sentence));

        //CheckIfPangram(sentence);

    }

    public static bool CheckIfPangram(string sentence) 

    {

        bool found = false;

        for(char i='a';i<='z';i++)

        {

            for(int j=0;j<sentence.Length;j++)

            {

                if(i == Char.ToLower(sentence[j]))

                {

                    //Console.WriteLine("present");

                    found=true;

                    break;

                }

            }

            if(found==false)

            {

                found = false;

                break;

            }

        }

        return found;

    }

}