#include using namespace std; #define rep(i,n) for(int i = 0; i < (int)(n); ++i) #define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; --i) #define ALL(a) a.begin(), a.end() #define Sort(a) sort(a.begin(), a.end()) #define RSort(a) sort(a.rbegin(), a.rend()) typedef long long int ll; typedef long double ld; typedef vector vi; typedef vector vll; typedef vector vc; typedef vector vst; typedef vector vd; typedef pair P; const long long INF = 0x1fffffffffffffff; const long long MOD = 1000000007; const long double PI = acos(-1); template inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } template inline T vin(T& vec, U n) { vec.resize(n); for(int i = 0; i < (int) n; ++i) cin >> vec[i]; return vec; } template inline void vout(T vec, string s = "\n"){ for(auto x : vec) cout << x << s; } template void in(T&... a){ (cin >> ... >> a); } void out(){ cout << '\n'; } template void out(const T& a, const Ts&... b){ cout << a; (cout << ... << (cout << ' ', b)); cout << '\n'; } template void inGraph(vector>& G, U n, U m, bool directed = false){ G.resize(n); for(int i = 0; i < m; i++){ int a, b; cin >> a >> b; a--, b--; G[a].push_back(b); if(!directed) G[b].push_back(a); } } struct Combination{ vector memo, memoinv, inv; long long mod; Combination(int N, long long m) : memo(N + 1), memoinv(N + 1), inv(N + 1){ mod = m; memo[0] = memo[1] = 1; memoinv[0] = memoinv[1] = 1; inv[1] = 1; for(int i = 2; i <= N; i++){ memo[i] = memo[i - 1] * i % mod; inv[i] = mod - inv[mod % i] * (m / i) % mod; memoinv[i] = memoinv[i - 1] * inv[i] % mod; } } long long fact(long long n){ return memo[n]; } long long factinv(long long n){ return memoinv[n]; } long long ncr(long long n, long long r){ if(n < r || r < 0) return 0; return (memo[n] * memoinv[r] % mod) * memoinv[n - r] % mod; } long long npr(long long n, long long r){ if(n < r || r < 0) return 0; return (memo[n] % mod) * memoinv[n - r] % mod; } }; ll m, n; void input(){ in(m, n); } void solve(){ if(m < n){ out("00000000"); return; } long long mod = 100000000; vll sieve(m + 1, 1); ll mn = m - n + 1; for(int i = mn; i <= m; i++){ sieve[i] = i; } for(int i = n; i >= 1; i--){ ll d = ((mn + i - 1) / i) * i; for(int j = d; j <= m; j += i){ if(sieve[j] % i == 0){ sieve[j] /= i; break; } } } long long ans = 1; for(int i = 1; i <= m; i++){ ans *= sieve[i]; ans %= mod; } string ans2 = to_string(ans); while(ans2.size() < 8){ ans2 = '0' + ans2; } out(ans2); } int main(){ ios::sync_with_stdio(false); cin.tie(nullptr); input(); solve(); }