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#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;
if(n>m)
swap(m,n);
int p=0;
for(int i=1;i<=m-1;++i)
{
for(int j=1;j<=i;++j)
{
if(__gcd(i,j)==1 && j<=n-1)
{
p++;
int u=i, y=j;
if(u<=n-1 && y<=m-1 && u!=y)
++p;
}
}
}
g<<p;
return 0;
}