Thank god I don't live in Asia. Their ICPC Championship seems ridiculously hard.

Let $$$|$$$ be such that $$$69|420 = 69420$$$.

$$$$$$ X = \left\lfloor\varphi^{16}\right\rfloor $$$$$$

$$$$$$ a = \text{The number of official Codeforces April Fools contests so far} $$$$$$

$$$$$$ r = \text{The number of r's in the word "strawberry"} $$$$$$

$$$$$$ c = \text{The most common "random" number from 1 to 100, inclusive, according to Veritasium} $$$$$$

$$$$$$ l = \lim_{x\rightarrow \infty}\left(\ln(x) - \frac{x}{\pi(x)}\right) \quad \text{, where } \pi(x) \text{ is the prime-counting function} $$$$$$

$$$$$$ j = \text{The number of days in July during a leap year} $$$$$$

$$$$$$ h = \operatorname{Median}\bigl(\{d \in \mathbb{Z}_{ \gt 0} : d \text{ is squarefree and } \mathbb{Q}(\sqrt{-d}) \text{ has class number } 1\}\bigr) $$$$$$

$$$$$$ m = \text{3-digit number most closely associated with Matikanefukukitaru} $$$$$$

$$$$$$ Y = (a|r) \cdot (c+10) \cdot (l|j) \cdot (h|m) \mod 10^9+7 $$$$$$