How is it even possible? What am I missing?

Having some trouble understanding the role of the Offset from Signal 0. Just looking for clarification, not full puzzle solutions. Any help is appreciated!

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The best OS ever made is the GNU operating system with the Linux kernel. Please release the game for other OSs other than that malware spread by Micro$oft. The best OS for gaming today is GNU/Linux. Its not the mosy supported, or with most players, but it deffinitely is amazing right now and the numbers keep on growing. As a life advice: consider the GNU operating system for everything, from general use to playing videogames. Thanks!...

Feeling a little silly right now that I don't understand how to accomplish the comparison of the inputs with the tools available, so thought I would see if anyone could provide a nudge in the right direction. The level text mentions having to manipulate the values to compare them. I would know how to do this if you could dynamically set the value of the arithmetic tiles/operators based on the value of a UBIT (like via a sensor or something), but that doesn't seem possible (unless I'm missing something). ...