import java.util.Scanner;

public class Yuki129 {

    // WA 最後に MOD(オーバーフロー)
    public Yuki129() {
        Scanner scanner = new Scanner(System.in);
        long N = scanner.nextLong();
        int M = scanner.nextInt();
        int MOD = 1000000000;

        long A = (N / 1000) / M;
        int K = (int) (N / 1000 - A * M);

        int[] dp = new int[M + 1];
        dp[0] = 1;
        dp[1] = 1;

        for (int i = 2; i <= M; i++) {
            for (int j = i; j >= 1; j--) {
                dp[j] = (dp[j] + dp[j - 1]);
            }
        }
        System.out.println(dp[K] % MOD);

    }

    public static void main(String[] args) {
        Yuki129 hoge = new Yuki129();
    }
}