#include "bits/stdc++.h"

using namespace std;

#define mp   make_pair
#define pb   push_back

#define double long double

struct Transfer {
    int priority;
    int weight;
    int time;
    int i;

    bool operator < (const Transfer& other) const {
        return mp(time, i) < mp(other.time, other.i);
    }
};

struct Line {
    // kx + b;
    double k = 1, b = 0;

    double at(double x) {
        return k * x + b;
    }

    void then(Line other) {
        *this = Line{k * other.k, other.k * b + other.b};
    }

    Line inv() {
        return Line{1/k, -b/k};
    }
};

int main() {
    ios_base::sync_with_stdio(false); cin.tie(NULL);

    int n, w;
    cin >> n >> w;
    vector<Transfer> transfers;
    for (int i = 0; i < n; ++i) {
        Transfer t;
        t.i = i;
        cin >> t.time >> t.weight >> t.priority;
        transfers.pb(t);
    }
    sort(transfers.begin(), transfers.end());
    vector<double> ans(n);

    set<pair<double, Transfer>> cur;
    Line line = {1, 0};
    int psum = 0;

    auto finish_until = [&](double deadline) {
        while (true) {
            if (cur.empty()) return;
            if (line.at(cur.begin()->first) > deadline) {
                return;
            }
            auto t = cur.begin()->second;
            ans[t.i] = line.at(cur.begin()->first);
            cur.erase(cur.begin());
            psum -= t.priority;

            if (cur.empty()) {
                line = {1, 0};
                break;
            }

            line.then({(double)psum / (psum + t.priority), (double)t.priority / (psum + t.priority) * ans[t.i]});
        }
    };

    for (auto t : transfers) {
        finish_until(t.time);

        double length = (double)t.weight / w;

        psum += t.priority;
        if (!cur.empty()) {
            line.then({(double)psum / (psum - t.priority), -(double)t.priority / (psum - t.priority) * t.time});
        }
        cur.emplace(line.inv().at(t.time + length * psum / t.priority), t);
    }
    finish_until(1e100);

    for (auto t : ans) {
        cout << fixed << setprecision(10) << t << '\n';
    }

    return 0;
}