import java.math.*;
import java.util.*;

class Main {
	public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        long n = sc.nextLong();
        int m = sc.nextInt();
        long nokori = n/1000*1000-n/1000/m*1000*m;
        long[][] pasu = new long[10001][10001];
        for(int i=0;i <= 10001;i++){
        	for(int j= 0;j<=i;j++){
        		if(j==0 || i==j){
        			pasu[i][j]=1;
        		}
        		pasu[i][j]=pasu[i-1][j-1]%1000000000+pasu[i-1][j]%1000000000;
        	}
        }
        System.out.println(pasu[m][(int)nokori/1000]);       
	}
}