import java.util.Scanner;
public class Test {
public static void main(String[] args) {
int arr[]= {1,1,1,2,2,2,3,3,3,8};
int len=arr.length;
int k=3;
char a[][]=new char[len][];
int max=0;
for(int i=0;i<len;i++) {
a[i]=new StringBuilder(Integer.toString(arr[i], k)).reverse().toString().toCharArray();
if(a[i].length>max) {
max=a[i].length;
}
}
int res[]=new int [max];
for(int i=0;i<len;i++) {
for(int j=0;j<max;j++) {
if(j>=a[i].length) {
res[j]+=0;
}
else {
res[j]=res[j]+(a[i][j]-'0');
}
}
}
int output=0;
for(int i=0;i<max;i++) {
output+=(res[i]%3)*(int)(Math.pow(k, i));
}
System.out.println(output);
}
}