C# Online Compiler | .NET Fiddle

using System;
					
public class Program
{
	public static void Main()
	{
		int nilai = 1;
		while (nilai < 6) {
			Console.WriteLine("Nilai : "+nilai);
			nilai = nilai + 3;
}
	}
}

Compilation error (line 49, col 20): ; expected
Compilation error (line 50, col 20): ; expected
Compilation error (line 49, col 7): The variable 'primeroNumero' is declared but never used
Compilation error (line 50, col 7): The variable 'segundoNumero' is declared but never used
Compilation error (line 51, col 7): The variable 'suma' is declared but never used