#include <iostream>
using namespace std;

int main() {

	int a,b,c;
	a = b = c = 0;
	int margfeldi = thrennd(a,b,c);

	cout << margfeldi << endl;
	return 0;
}

int thrennd(int a, int b, int c){

	int sum = 0;
	for(c = 0; c < 1000; c++)
	{
		for(b = 0; b < 1000; b++)
		{
			for(a = 0; a < 1000; a++)
			{
				if(a+b+c == 1000)
				{
					sum = a*b*c;
				}
			}
		}
	}
	return sum;
}