#include #ifdef LOCAL #include #else #define debug(...) void(0) #endif using namespace std; typedef long long ll; #define all(x) begin(x), end(x) constexpr int INF = (1 << 30) - 1; constexpr long long IINF = (1LL << 60) - 1; constexpr int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1}; template istream& operator>>(istream& is, vector& v) { for (auto& x : v) is >> x; return is; } template ostream& operator<<(ostream& os, const vector& v) { auto sep = ""; for (const auto& x : v) os << exchange(sep, " ") << x; return os; } template bool chmin(T& x, U&& y) { return y < x and (x = forward(y), true); } template bool chmax(T& x, U&& y) { return x < y and (x = forward(y), true); } template void mkuni(vector& v) { sort(begin(v), end(v)); v.erase(unique(begin(v), end(v)), end(v)); } template int lwb(const vector& v, const T& x) { return lower_bound(begin(v), end(v), x) - begin(v); } const double PI = acos(-1.0L); int main() { ios::sync_with_stdio(false); cin.tie(nullptr); cout << fixed << setprecision(10); int R, K; cin >> R >> K; vector ans; for (int i = 1; 2 * i <= K; i++) { double lb = 0, ub = PI / 2; for (int _ = 0; _ < 100; _++) { double mid = (ub + lb) / 2; double area = mid; area -= cos(mid) * sin(mid); (area < PI / (K + 1) * i ? lb : ub) = mid; } ans.emplace_back(-R * cos(lb)); } for (auto& x : ans) cout << x << '\n'; if (K & 1) cout << 0 << '\n'; reverse(all(ans)); for (auto& x : ans) cout << -x << '\n'; return 0; }