/*
TASK: N23
LANG: C++
*/
#include<iostream>
using namespace std;
int n;
int stepen(int a,int b)
{
    int i,p=1;
    for(i=0;i<b;i++)p*=a;
    return p;
}
int main()
{
    int i,j,r=2,r1,r2;
    cin>>n;
    for(i=1;i<10;i++)
    {
       r1=r;
       r2=r;
       r1+=stepen(10,i)*2;
       r2+=stepen(10,i)*3;
       if(r1%(stepen(2,i+1))==0)r=r1;
       else r=r2;
       if(r%(stepen(2,n))==0)
       {
           cout<<r<<"\n";
           break;
       }
    }
    system("PAUSE");
    return 0;
}
