c# for loop

i'm new to c# so i don't know how to use a for loop to increment my nums. num apparently doesn't work in c#

Code:

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

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            int num1;
            int num2;
            int num3;
            int num4;
            int num5;
            int neg = 0;
            int zero = 0;
            int pos = 0;
            int i;
            Console.WriteLine("enter 5 numbers");
            num1 = Convert.ToInt32(Console.ReadLine());
            num2 = Convert.ToInt32(Console.ReadLine());
            num3 = Convert.ToInt32(Console.ReadLine());
            num4 = Convert.ToInt32(Console.ReadLine());
            num5 = Convert.ToInt32(Console.ReadLine());
            for (i=1; i < 6; i++)
            {
                if (num[i] < 0)
                    neg = neg + 1;
                if (num[i] == 0)
                    zero = zero + 1;
                if (num[i] > 0)
                    pos = pos + 1;
            }
        }
    }
}

 

num works if you declare them as array and above code will not work in any programming language I suppose.