using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp38
{
    class Program
    {
        static void Main(string[] args)
        {
           Console.WriteLine (ObliczPole(10));
            //int temp = ObliczPole(10);
            //Consol.Writeline(temp);
            Console.ReadLine();

        }
        static public int ObliczPole (int a)
        {
            return a * a;
            //Albo morzna zrobić terz tak 
            //int temp = a*a ;
            //return temp;
        }
    }

}