#include <iostream>
#include <fstream>

using namespace std;

int main()
{
    int n,p,nr=0,q;
    ifstream in ("fractii.in");
    ofstream out ("fractii.out");
    in >> n;
    p=1;
    q=1;
    while(p<=n)
    {
        q=1;
        while(q<=n)
        {
            if((q%p!=0 and p%q!=0 and q!=p)or q==1 or p==1){nr++;}
            q++;cout <<p;
        }
        p++;
    }
    out <<nr;
    return 0;
}