how to write if statement in C# saying that if one id has value then set to code example

Example 1: nested if statement example in c#

class Program{
        static void Main(string[] args){
            Console.WriteLine("Enter a any number between 1 to 10");
            int num1 = Convert.ToInt16(Console.ReadLine());
            if (num1 > 100){
                Console.WriteLine("Wrong number, {0}", num1);
            }else{
                if (num1 == 9){
                    Console.WriteLine("Jackpot number, {0}", num1);
                }else{
                    Console.WriteLine("Your number, {0}", num1);
                }
            }   
        }
   }

Example 2: if inside if c#

int Test1 = 1;
int Test2 = 1;

if (Test1 = 1)
{
  if (Test2 = 1)
  {
  Console.WriteLine("This is the up Answer.");
  }
  Console.WriteLine("This is the down Answer.");
  
}

//END HERE
//THIS IS CODE FOR C#