#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<ll> VL;
typedef vector<VL> VVL;
typedef pair<int, int> PII;

#define FOR(i, a, n) for (int i = (int)a; i < (int)n; ++i)
#define REP(i, n) FOR(i, 0, n)
#define ALL(x) x.begin(), x.end()
#define MOD 1000000007
#define INF 1000000000
#define PI 3.14159265359
#define EPS 1e-12

ll dp[10010][10010];

int main(void)
{
  ll n, m;
  cin >> n >> m;
  ll a = n%(m*1000)/1000;
  if(a == 0) {
    cout << 1 << endl;
    return 0;
  }
  //cout << a << endl;
  //m人にa枚を配る
  REP(i, m+1) {
    REP(j, i+1) {
      if(j == 0 || j == i) dp[i][j] = 1;
      else dp[i][j] = (dp[i-1][j-1] + dp[i-1][j])%INF;
      //cout << dp[i][j] << " ";
    }
    //cout << endl;
  }

  cout << dp[m][a]%INF << endl;
  return 0;
}