package javatest;
import java.util.*;
public class javatest
{
public static void num(int[] inp)
{
for(int i=0;i<inp.length;i++)
{
int temp=inp[i];
int cur=0;
int re=0;
while(temp!=0)
{
cur=temp%3;
temp=temp/3;
re=re+temp;
temp=temp+cur;
}
if(cur==2)
re=re+1;
System.out.println(re);
}
}
public static void main(String[] args)
{
Scanner sc=new Scanner(System.in);
int[] inp=new int[10];
int i=0;
while(sc.hasNextInt())
{
if(sc.nextInt()==0)
{
break;
}
if(i<10)
{
inp[i]=sc.nextInt();
i++;
}
else
break;
}
sc.close();
num(inp);
}
}
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