using System;

using System.Collections.Generic;                   

public class Program

{

    public static void Main()

    {

        // le injection

        FirstWriter firstWriter = new();

        SecondWriter secondWriter = new();

        // le repeat 10 times

        IEnumerable<EntityOne> entityOne = new List<EntityOne>() { new() }; // From repository

        firstWriter.Write(entityOne);

        IEnumerable<EntityTwo> entityTwo = new List<EntityTwo>() { new() };

        IEnumerable<EntityThree> entityThree = new List<EntityThree>() { new() };

        secondWriter.Write(entityTwo, entityThree);

        // ...              

        Console.WriteLine("Hello World");

    }

}

​

record EntityOne;

record EntityTwo;

record EntityThree;

​

class FirstWriter 

{

    public void Write(IEnumerable<EntityOne> one) 

    {

    }

}

​

class SecondWriter 

{

    public void Write(IEnumerable<EntityTwo> two, IEnumerable<EntityThree> three) // Can be any number of entities that will be written

    {

    }

}