CodeForces 333A Secrets

http://codeforces.com/problemset/problem/333/A

同样是看清题目,英语真的很重要..

#include<bits/stdc++.h>
using namespace std;
int main(){
	long long int n;
	while(scanf("%I64d",&n)!=EOF)
	{
		long long int _3=3;
		while(n%_3==0){
			_3*=3;
		}
		long long int ans=n/_3+1;
		cout<<ans<<endl;
	}
	return 0;
}