import sys
#sys.setrecursionlimit(n)
import heapq
import re
import bisect
import random
import math
import itertools
from collections import defaultdict, deque
from copy import deepcopy
from decimal import *

n = int(input())
m = int(input())

def nCm(n, m):
  return math.factorial(n) // (math.factorial(m) * (math.factorial(n - m)))
s = n
s -= n // (m * 1000) * 1000 * m
ss = s // 1000

if ss > 0:
  print(nCm(m,ss) % 1000000000)
else:
  print(1)