/**
 * ! @Author : - Mohammed Murshedur Rahman
 * ? Date & Time : - 2024-11-05 20:33
 * * BANGLADESH : - SYLHET
 */

#include <stdio.h>

void solve()
{
    int h,w;
    scanf("%d %d",&h,&w);
    int a[w];
    for (int i = 0; i < w; i++)
    {
        a[i]= (h-(i+1)+1)*(w-(i+1)+1);
    }
    int total=0;
    for (int i = 0; i < w; i++)
    {
        total+=a[i];
    }
    printf("%d\n",total);

}

int main()
{
    solve();
    return 0;
}