#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <numeric>
#include <map>
#include <set>
#include <complex>

using namespace std;

#define REP(i,n)	for(int i=0;i<(n);++i)
#define REPS(i,s,t)	for(int i=(s);i<(t);++i)

#define INF 		2000000007
#define MOD			1000000000

#define MAX 		100005

typedef unsigned int 			uint;
typedef unsigned long long int	ull;
typedef long long int 			ll;

int dp[MAX][MAX];

void pascal(int n){
	dp[1][1]=1;
	REPS(i,2,n+1){
		REP(j,n+1){
			dp[i][j] = (dp[i-1][j-1] + dp[i-1][j])%MOD;
		}
	}
}

int main(){
	ull N;cin>>N;
	int M;cin>>M;

	N /= 1000;

	int R = N%M;
	R = min(R,M-R);
	
	// M C R 
	pascal(M);
	cout << dp[M][R] << endl;

	return 0;
}