//HC
#include <fstream>
using namespace std;
ifstream in("mins.in");
ofstream out("mins.out");
int cmmdc(int a,int b)
{
    int r;
    while(b)
    {
        r=a%b;
        a=b;
        b=r;
    }
    return a;
}
int main()
{
    int c,d,i,j,cnt=0;
    in>>c>>d;
    for(i=1;i<c;++i)
        for(j=1;j<d;++j)
            if(cmmdc(i,j)==1)
                cnt++;
    out<<cnt;
    return 0;
}