#include <bits/stdc++.h>

using namespace std;

#define REP(i,n) for(int i=0;i<int(n);i++)
typedef long long ll;
typedef pair<int,int> P;

int main(void){
	ll i,j;

	cin.tie(0);  ios_base::sync_with_stdio(false);

	ll M,N;
	cin >> M >> N;

	if(M<N){
		cout << "00000000" << endl;
		return 0;
	}

	ll a=1;
	for(i=1;i<=N;i++){
		a=a*(M-i+1)/i;
	}

	string s=to_string(a);
	ll n=s.size();
	if(n<=8LL){
		REP(i,8-n) cout << 0;
		cout << a << endl;
	}
	else cout << a%100000000 << endl;




	return 0;
}