#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
#define pb push_back
#define mod 1000000007
#define srt(v) sort(v.begin(),v.end())
#define rsrt(v) sort(v.rbegin(),v.rend())
#define OPTIMIZE_IO ios::sync_with_stdio(false); cin.tie(nullptr);

void solve() {
    int h,w;
    cin>>h>>w;

    ll ans=0;

    for(int i=0; i<min(h,w); i++){
        ans+=(h-i)*(w-i);
    }
    cout<<ans<<endl;
}

int main() {
    OPTIMIZE_IO;
    int t=1;
    while (t--) {
        solve();
    }
    return 0;
}