using System;
public class Program
{
public static void Main()
string npi = "1760934123";
Guid spiGuid = Guid.NewGuid();
int spiCount = 4;
// Append the last 3 digits from the given NPI to form our "Mock" SPI
string mockSpi = $"{npi}{spiCount:000}";
Console.WriteLine($"Prescriber NPI: {npi}");
Console.WriteLine($"Mock SPI: {mockSpi}");
}