#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; 
	 
	return 0;
}

/**************************************************************
	Problem: 1324
	User: lvrenxiang
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/