#include<cstdio>
#include<cmath>
int main()
{
    int n;
    scanf("%d",&n);
    printf("%d",(int)pow(2,n));
    return 0;
}

#include<iostream>
using namespace std;
int main()
{
int n,x=1;
cin>>n;
for(int i=1;i<=n;i++)
{
x*=2;
}
cout<<x;
return 0;
}