#include<iostream>
using namespace std;
int Com(int n,int r,int nCr[10001][10001]){
    if(nCr[n][r] != 0) return nCr[n][r];
    if(r == 0 || r == n){
        nCr[n][r] = 1;
        return 1;
    }
    if(r == 1 || r == n-1){
        nCr[n][r] = n;
        return n;
    }
    if(r > n/2+1){
        nCr[n][r] = Com(n,n-r,nCr);
        return nCr[n][r];
    }
    else{
        nCr[n][r] = Com(n-1,r,nCr) + Com(n-1,r-1,nCr);
        return nCr[n][r];
    }

}
int main(){
    int N,M;
    int hit;
    int nCr[10001][10001] = {};
    cin >> N >> M;
    hit = (N/1000) % M;
    cout <<  Com(hit,M,nCr) << endl;
    return 0;
}