#include <fstream>

using namespace std;

int c, d, i, j, a, b, r, sol;

int main () {
    ifstream fin ("mins.in");
    ofstream fout("mins.out");

    fin>>c>>d;
    c--;
    d--;
    for (int i=1;i<=c;i++)
        for (int j=1;j<=d;j++) {
            a = i;
            b = j;
            while (b) {
                r = a%b;
                a = b;
                b = r;
            }
            if (a == 1)
                sol++;
        }
    fout<<sol;
    return 0;
}