JavaScript for PDF Forms to use in DocHub/Google Classroom

Hello. I'm looking for a Javascript programmer to do the following task (please do not contact me unless you are able to do said task): - I am creating PDF forms using Adobe Acrobat Pro DC for my math students - I will need to build custom Javascript validation protocol to do the following: 1) When the student types in the correct value for his answer in the field box, for example if the question is 2+2 and he types in "4", it triggers a reaction (for example the answer turns green, or stays visible in the field box), but if he types in the wrong value it triggers a negative reaction (for example the answer disapears from the box, or turns red, etc...). 2) The script has to work inside Adobe Reader but it ABSOLUTELY has to work using DocHub (via Google Classroom, that is the Chrome extension my students will use to view and fill pdf forms) and when I say "work", I mean be fully functionnal using the parameters stated above (i-e the triggers). 3) I've already tried different JS protocols using examples found online but it doesn't transfer to DocHub, which is an absolute necessity. 4) I've attached a file to show an example of what I'm trying to build. 5) The code has to be easily transposable, by which I mean it has to be a basic canvas that I can simply copy/paste and just modify the value of the answer for each question. 6) I would also need a button to be programmed so that my student can attach picture files of their calculations (again, see example in sample file). Only serious programmer please, do not contact me if you are unable to do the task. Payment will only be sent once I see proof (ex.: a video recording of a dummy user filling the form on DocHub and triggering the reactions mentionned above) that it actually works. Instructions on ho to use the JS protocols will need to be included as I am not familiar with JS.