#include <iostream>
#include <fstream>
#include <algorithm>
using namespace std;
ifstream f ("mins.in");
ofstream g ("mins.out");
int vek[1000001];
int cek[1000001];
int m,n;
int main()
{
    f>>m>>n;
    int p=0;
    for(int i=1;i<=m-1;++i)
    {
        for(int j=1;j<=n-1;++j)
        {
            if(__gcd(i,j)==1)
                p++;
        }
    }
    g<<p;
    return 0;
}