#include <iostream>
using namespace std;
typedef long long LL;
const LL b = 1000000000;
int main()
{
	cin.tie(0);
	ios::sync_with_stdio(false);
	
	LL n;
	int m;
	cin >> n >> m;
	
	int a = n / 1000 % m;
	
	if(a == 0)
		cout << 1 << endl;
	else{	
		int ans = 1;
		if(a < m - a){
			for(int i = 0; i != a; ++i){
				ans *= m - i;
				ans /= a - i;
				ans %= b;
			}
		}
		else{	
			for(int i = 0; i != m - a; ++i){
				ans *= m - i;
				ans /= (m - a) - i;
				ans %= b;
			}

		}
		cout << ans << endl;
	}
		
	return 0;
}