Record Detail

#	Status	Time Cost	Memory Cost
#1	Accepted	16ms	3.008 MiB
#2	Accepted	16ms	2.957 MiB
#3	Accepted	16ms	3.066 MiB
#4	Accepted	16ms	2.91 MiB
#5	Accepted	16ms	3.043 MiB
#6	Accepted	16ms	2.895 MiB
#7	Accepted	15ms	3.0 MiB

x = int(input())

ans = 1

while True:
	if (ans * x ) % 10 == 0:
		break
	ans += 1

print(ans)

Accepted