#include <bits/stdc++.h>
using namespace std;

static const double INF = 1e18;
static const double EPS = 1e-9;

int n;
vector<double> x, ylo, yhi;

// L(m) = max_i (x_i * m - y_i^+)
double L(double m) {
    double res = -INF;
    for (int i = 0; i < n; i++)
        res = max(res, x[i] * m - yhi[i]);
    return res;
}

// U(m) = min_i (x_i * m - y_i^-)
double U(double m) {
    double res = INF;
    for (int i = 0; i < n; i++)
        res = min(res, x[i] * m - ylo[i]);
    return res;
}

// g(m) = L(m) - U(m)   (konveksna)
double g(double m) {
    return L(m) - U(m);
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    cin >> n;
    x.resize(n);
    ylo.resize(n);
    yhi.resize(n);

    for (int i = 0; i < n; i++) {
        cin >> x[i] >> ylo[i] >> yhi[i];
    }

    // Opseg za m (nagib)
    double lo = -1e6, hi = 1e6;

    // Ternarna pretraga
    for (int it = 0; it < 200; it++) {
        double m1 = lo + (hi - lo) / 3.0;
        double m2 = hi - (hi - lo) / 3.0;

        if (g(m1) < g(m2))
            hi = m2;
        else
            lo = m1;
    }

    double m = (lo + hi) / 2.0;
    double Lm = L(m);
    double Um = U(m);

    if (Lm <= Um + EPS) {
        double Y = Lm;      // bilo šta iz [L(m), U(m)]
        double c = -Y;      // jer je Y = -c u dualu

        cout << "YES\n";
        cout << fixed << setprecision(10);
        cout << "m = " << m << "\n";
        cout << "c = " << c << "\n";
        cout << "line: y = " << m << "x + " << c << "\n";
    } else {
        cout << "NO\n";
    }

    return 0;
}