#include <iostream>
#include <fstream>

using namespace std;

int main()
{   ifstream fin("fractii.in");
    ofstream fout("fractii.out");
   double a[200],nc=0,z;
    int k,i,j,x=1,ok=0,n;
    int s;
    for(s=1;s<=4;s++)
    {fin>>n;

    for(i=1;i<=n;i++)
        for(j=1;j<=n;j++)
            {   z=(double)i/j;
               for(k=1;k<=x;k++)
                    if(a[k]==z)
                            ok=1;

               if(ok==0)
               {a[x]=z;
               x++;
               nc++;
               }

               ok=0;
            }

     fout<<nc<<"\n";}
    return 0;
}