#include<cstdio>
using namespace std;
int i,j,n,m;
long long cnt;
int gcd(int a,int b)
{
    int r;
    while(b)
    {
        r=a%b;
        a=b;
        b=r;
    }
    return a;
}
int main()
{
freopen("mins.in","r",stdin);
freopen("mins.out","w",stdout);
scanf("%d",&n);
scanf("%d",&m);
for(i=1;i<n;i++)
    for(j=1;j<m;j++)
        cnt+=(gcd(i,j)==1);
printf("%lld\n",cnt);
return 0;
}