Minecraft Simple Adder [NEW DESIGN]

One day i was thinking, its possible to make a calculator in minecraft, and hundreds of people had done it before, and made it compact, and made it add way more numbers. People may brag they can easily make one, but they probably watched a youtube video. But this is my new Adder project. As far as i know this is my design, I haven't watched any videos, and I Just came up with this design in my head. It is pretty simple, and the output is not in binary or something, it outputs the number Directly in Easy to see redstone torches. As of now it only adds Up to 2 on each side SO anything from 0+0 to 2+2. But i am still working on expanding to 3 and 3 and 4 and 4 and so on. It is Kind of compact, and im working on making it even more COMPACT! I also hope to make it an actual calculator that can add and subtract! If anyone wants to see it, or maybe even help Visit My server, if you want me to update this project more just tell me!
Ip: derpcraft.servegame.com
And ask for happy

Additional Notes

It still under development and I'm pretty good with redstone, leave any comments related to it! I would like some feedback.