Solved by gennadykorotkevich

#	Title	# Solved	Avg. Tries
17468	N! mod P (3)	32	3.09
18168	Game with Polynomials 2	49	3.14
18661	The One Polynomial Man	12	2.00
31500	N진수 곱셈 (tiny)	47	3.83
31505	N진수 곱셈 (HUGE)	23	7.74

1