#include<iostream>
#include<vector>
#include<atcoder/all>

using namespace std;

int action(int x,vector<int> a,int N){
    int y=0;
    for (int i=0; i<2*N; i++){
        if (x&(1<<i)) y|=1<<a[i];
    }
    return y;
}

int main(){
    int N; cin >> N;

    atcoder::dsu U(1<<(2*N));

    vector<int> t(2*N,0), u(2*N,0);

    // 2π/N 回転
    for (int j=0; j<N; j++){
        t[j]  =(1+j)%N;
        t[j+N]=t[j]+N;
    }

    // ひっくり返す
    for (int j=0; j<N; j++){
        u[j+N]=(N-1)-j;
        u[j]  =u[j+N]+N;
    }

    for (int S=0; S<(1<<(2*N)); S++){
        U.merge(S,action(S,t,N));
        U.merge(S,action(S,u,N));
    }

    vector<vector<int>> G=U.groups();

    cout << G.size() << endl;

}