using System;
public class Program
{
static bool isPrime(int x) {
for (int i = 2; i < x; i++){
if (x % i == 0)
return false;
}
return true;
public static void Main()
{ Console.WriteLine("All prime numbers from 2 to 500:");
for (int i = 2; i <= 500; i++){
bool a = isPrime(i);
if (a == true) {
Console.WriteLine("{0}",i);