OJ Board

Anybody who still got WA should read these notes:
1. Prime numbers are NOT Smith numbers
2. Integer data type is ENOUGH, instead using unsigned or long long
3. Output for 1,000,000,000 is 1,000,000,165
4. Output for 1 is 4 !!!

I've been trying to solve this problem and got 20 WAs so far.
is there any tricky case in judge inputs?
is it required to add an extra new line at the end of the output?

i've already passed all the sample IO which is written on the previous posts.
But still Wrong Answer at all.

sohel, you're right. I never expect such kind of error processing...

better check next time..

sclo, I've done it

well .. I tried to solve it by counting both the volumes if the paper is folded
horizontally and vertically. Then, choose the biggest one.
Afterall, all of sudden just give me more Wrong Answers...

Is it just me or is the answer for the second test input not optimal....

My binary search gives a ...