#include <iostream>
using namespace std;
int main()
{
long double sum_1=0, sum_2=0;
int n, m;
cin >> n >> m;
for(int k=1;k<=n;k++)
{
for(int l=1;l<=m;l++)
{
sum_2+=(k-l)*(k-l);
}
sum_1+=k*k*k*sum_2;
sum_2-=sum_2;
}
cout << sum_1;
return 0;
}
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