#include <bits/stdc++.h>

using namespace std;

const long long int MOD = 1e9;
long long int f[20001];
int main() 
{
    ios::sync_with_stdio(false); 
    cin.tie(0);
    
    long long int N, M;

    cin >> N;
    cin >> M;

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

    //cout << M << ' ' << A << '\n';

    f[0] = 1;
    for (int i = 1; i <= 20000; i++)
    {
        f[i] = (i * f[i - 1]) % MOD;
    }

    if (f[M] == 0)
    {
        cout << 0 << '\n';
    }
    else
    {
        cout << (f[M] / f[A]) / (f[M - A]) << '\n';
    }
    return 0;
}