#include using namespace std; #include using namespace atcoder; using ll = long long; using ld = long double; using P = pair; using Graph = vector>; using vi = vector; using vl = vector; using vll = vector; using vvi = vector; using vvl = vector; using vvll = vector; using vs = vector; using vc = vector; using vvc = vector; using pll = pair; using vpll = vector; using mint = modint1000000007; const long double EPS = 1e-18; const long long INF = 1e18; const long double PI = acos(-1.0L); #define reps(i, a, n) for (ll i = (a); i < (ll)(n); i++) #define rep(i, n) for (ll i = (0); i < (ll)(n); i++) #define rrep(i, n) for (ll i = (1); i < (ll)(n + 1); i++) #define repd(i, n) for (ll i = n - 1; i >= 0; i--) #define rrepd(i, n) for (ll i = n; i >= 1; i--) #define ALL(n) begin(n), end(n) #define IN(a, x, b) (a <= x && x < b) #define INIT \ std::ios::sync_with_stdio(false); \ std::cin.tie(0); template inline T CHMAX(T& a, const T b) { return a = (a < b) ? b : a; } template inline T CHMIN(T& a, const T b) { return a = (a > b) ? b : a; } ld f(ld x) { return 1.0 * (2.0 * x - sinl(2.0 * x)); } ld nibu(ld S) { ld ng = PI / 2.0; ld ok = 0.0; while (abs(ok - ng) > EPS) { ld mid = (ok + ng) / 2.0; if (S >= f(mid)) { ok = mid; } else { ng = mid; } } return ok; } int main() { ll R, K; cin >> R >> K; vector ans; ld cut = 1.0 / (K + 1); rrep(i, K / 2) { ld menseki = 2.0 * PI * cut * i; ld kaku = nibu(menseki); ans.push_back(1.0 * R * cosl(kaku)); } ll n = ans.size(); rep(i, n) { ans.push_back(-1.0 * ans[i]); } if (K % 2) { ans.push_back((ld)0.0); } sort(ALL(ans)); for (auto x : ans) { cout << setprecision(12) << x << endl; } return 0; }