#include<bits/stdc++.h>
using namespace std;
int main(){
    int a,b;
    cin>>a>>b;
    if(a>b) cout<<(a-b)*a; 
    if(b>a) cout<<(b-a)*b; 
}
/**************************************************************
	Problem: 1324
	User: yangjunwen
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/