#include <fstream>
using namespace std;

int main()
{
    ifstream fin ("fractii.in");
    ofstream fout ("fractii.out");
    int a, b=0, n, i, j;
    fin >> n;
    for (i=1; i<=3; i++)
    {
        for (j=1; j<=3; j++)
    {
        while (a=i/j)
        {
            i=j;
            j=a;
        }
        if (j==1)
        b=b+1;
    }
    }
    fout << b;
    return 0;
}