import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner koko = new Scanner(System.in);
        long n = koko.nextLong();
        int m = koko.nextInt();
        long nama = n%1000;
        long nmai = (n-nama)/1000;
        long amari = nmai%m;
        if(amari==0){
            System.out.println(1);
        }else{
            long[][] judge = new long[(int)(m-amari+1)][(int)(amari+1)];
            for(int i=0; i<amari+1; i++){
                judge[0][i]=1;
            }
            for(int i=0; i<m-amari+1; i++){
                judge[i][0]=1;
            }
            for(int i=1; i<m-amari+1; i++){
                for(int j=1; j<amari+1; j++){
                    judge[i][j]= (judge[i-1][j]+judge[i][j-1])%1000000000;
                }
            }
            long ans = judge[(int)(m-amari)][(int)amari];
            System.out.println(ans);
        }
    }
}