#include <iostream>

int main() {
    int m, n;
    std::cin >> m >> n;
    int side = (m > n)? m : n;
    int original_area = m * n;
    int new_area = side * side;
    int area_increase = new_area - original_area;
    std::cout << area_increase << std::endl;
    return 0;
}    
/**************************************************************
	Problem: 1324
	User: fandaohan
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/