✅ A bit of a beginner qustion, working with data types and variables. I can't seem to get it working

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

namespace Variables
{
    internal class Program
    {
        static void Main(string[] args)
        {
            int x;
            int y;

            x = 7;
            y = x + 3;

            Console.WriteLine(y);
            Console.ReadLine();
        }
    }
}

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

namespace Variables
{
    internal class Program
    {
        static void Main(string[] args)
        {
            int x;
            int y;

            x = 7;
            y = x + 3;

            Console.WriteLine(y);
            Console.ReadLine();
        }
    }
}