Unfortunately this does not meet the requirements for a build server application (https://forum.openredstone.org/showthread.php?tid=4). However if you can rebuild it using one calculation unit instead of the two you have made (for subtraction and addition) and include multiplication, I will be happy to accept you. In order to learn how to do this, I would recommend you apply for the school server (https://openredstone.org/guides/apply-school-server/) where teachers can show you the concept. Then feel free to apply again
<-- The actual Minecraft server host