How to input command line arguments to a dotnet c# program using bash scripts?

Question

I have a simple c# program that expects command line input (from Console.ReadLine()) when ran. There's a lot of inputs I have to provide, so I was wondering how I could automate this process. I currently have a shell script that attempts to do this, but it's not working.

#!/bin/sh
dotnet run #run the program
1          #input first argument (this failed so I tried echo 1 instead but no luck)
           # <- rest of command line inputs on each line

Not really familiar with shell scripts, and I'm not fixed on this solution if you had another solution in mind. My OS is MacOS.