April Fools Contest 2017 A

Description

Input

The input contains a single integer a (1 ≤ a ≤ 30).

Output

Output a single integer.

Example

input

3

output

27

那个，这个，额，查题目名称吧Numbers Joke

 #include<bits/stdc++.h>
 using namespace std;
 #define ll long long
 ll a[]={,, , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,};
 ll n;
 int main()
 {
     cin>>n;
     cout<<a[n]<<endl;
     return ;
 }