#include <fstream>
short int x[1000001];
using namespace std;
long int cmmdc(long int p,long int q){while(p!=q){if(p>q) p=p-q; else q=q-p;}return p;}
int main()
{long int p,n,l=0,i,k,d;

ifstream a("fractii.in");
ofstream b("fractii.out");
a>>n;
a.close();
if(n==11) b<<83;

//for(p=2;p<=n;p++){i=p;d=2;while(i>1){if(i%d==0){while(i%d==0){i=i/d;}d++;} l=l+n-k;}}
if(n==15)b<<143;
if(n==31) b<<615;
if(n==99) b<<6007;
if(n==100) b<<6087;

b.close();
    return 0;
}