#include <bits/stdc++.h>

using namespace std;

#define FOR(i,a,b) for(int i=(a);i<(b);i++)
#define REP(i,n) FOR(i,0,n)
#define ALL(v) (v).begin(),(v).end()

template<typename A, typename B> inline bool chmax(A &a, B b) { if (a<b) { a=b; return 1; } return 0; }
template<typename A, typename B> inline bool chmin(A &a, B b) { if (a>b) { a=b; return 1; } return 0; }

typedef unsigned long long ull;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const ll INF = 1ll<<29;
const ll MOD = 1000000007;
const double EPS  = 1e-10;

ll ncr(ll n, ll r) {
	if (n < r || n < 0 || r < 0) return 0;
	ll res = 1, c = 1;
	
	for (ll i = n; i >= n - r + 1; i--) {
		res *= i;
		
		if (c <= r) res /= c++;
		
		if (res >= 1e9) res %= 1000000000;
	}
	while (c <= r) res /= c++;
	
	return res;
}


int main() {
	ll n, m;
	cin >> n >> m;
	
	n /= 1000;
	n %= m;
	
	cout << ncr(m, n) << endl;
	
	return 0;
}