/*
TASK: rtri
LANG:C++
*/
#include<iostream>
using namespace std;

int main(){
    int n,m;
    cin>>m>>n;
    m++;n++;
    long long int br=0;
    int k,l,p,q;
    for(int i=1;i<=m;i++)
            for(int j=1;j<=n;j++){
                    br += ((n-j)*(i-1));
                    br += ((i-1)*(j-1));
                    br += ((m-i)*(j-1));
                    br += ((m-i)*(n-j));
                    
                         k=i;l=j,p=i,q=j;
                    while(k<=m&&l>=1&&p>=1&&q<=n){
                                     br++;
                                     k++;
                                     l--;
                                     p--;
                                     q++;
                                     }
                         k=i;l=j;
                    while(k>=1&&l<=n&&p<=m&&q>=1){
                                     br++;
                                     l++;
                                     k--;
                                     p++;
                                     q--;
                                     }
                    k=i;l=j;
                    while(k>=1&&l<=n&&p<=m&&q>=1){
                                     br++;
                                     k--;
                                     l++;
                                     p++;
                                     q--;
                                     }
                     k=i;l=j;
                    while(k<=m&&l>=1&&p>=1&&q<=n){
                                     br++;
                                     k++;
                                     l--;
                                     p--;
                                     q++;
                                     }
                     if((i==1&&j==1)||(i==1&&j==n)||(j==1&&i==m)||(i==m&&j==n))
                                                                              br -= 4;
                     else
                         if((i==1)||(i==m)||(j==1)||(j==n))  
                                                             br -= 3;
                       //cout<<br<<endl;
                                  
                    }
    cout<<br<<endl;
    return 0;
}
