Pyresh left behind a piece of his realizations.
Numbers are written in what looks to be a riddle of sorts.
After a sequence of numbers follows a question mark.
It's as if someone wanted their formula to be solved by another.
57 - 410 = 27
48 - 322 = 17
21 - 121 = ?

57 - 410 = 27
48 - 322 = 17
21 - 121 = ?

The riddle-like numbers here
stand for dates of the calendar.
The number of days between
February 1 and January 21 are 11!
You feel your head's about to burst with pain,
but you've solved Pyresh's Formula.

Completion Target: Trace of Pyresh
- Solve the secret formula left behind by Pyresh and type it in the chat window

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Required actions:

1. Type the following text in the chat window: 11