#include<bits/stdc++.h>
using namespace std;

#define ll long long

int main()
{
    ll h,w; cin>>h>>w;
    ll sum=0;
    ll mn=min(h,w);
    for(int i=1; i<=mn; i++){
        sum+=(h-i+1)*(w-i+1);
    }
    cout<<sum<<endl;
}