#include<cstdio>

#include<cstring>

#include<iostream>

#include<algorithm>

using namespace std;

int n;

int f[];

int main(){

    scanf("%d",&n);

    for(int i=;i<=n;i++)    f[i]=;

    for(int i=;i<=n;i++){

        for(int j=;j<=i/;j++)

            f[i]+=f[j];

    }

    cout<<f[n];

}

#include<cstdio>

#include<cstring>

#include<iostream>

#include<algorithm>

using namespace std;

int n;

int f[];

int main(){

    scanf("%d",&n);

    f[]=;f[]=;f[]=;

    f[]=;f[]=;f[]=;

    for(int i=;i<=n;i++)

        f[i]=f[i-]+f[i/];

    cout<<f[n];

}