ASP.NET Web Application in C# to Create Linear Alphanumeric Pattern

This code creates alphanumeric pattern like:

<user string><number>, .....

static void Main(string[] args)
    {
        string str="rr";

        int m, n,k,i;

        Console.Write("Please enter number of alphanumerics required: ");
        m = int.Parse(Console.ReadLine());

        Console.Write("\nPlease enter start of numeric number: ");
        n = int.Parse(Console.ReadLine());

        for (k=0,i=n; k<m;i++,k++)
        {
            Console.WriteLine(str+i);
        }

        Console.Read();
    }