#include <bits/stdc++.h>
#define ll long long
using namespace std;
const int N = 1e6 + 10;
ll buy[N], sell[N];
int n;
void tc() {
    cin >> n;
    for (int i = 0; i < n; i++) {
        string s;
        int a, b;
        cin >> s >> a >> b;
        int num = stod(s) * 100;
        buy[num] += a;
        sell[num] += b;
    }
    for (int i = 1; i < N; i++)
        sell[i] += sell[i - 1];
    for (int i = N - 2; i >= 0; i--)
        buy[i] += buy[i + 1];
    ll mx = 0;
    ll who = -1;
    for (int i = 1; i < N; i++) {
        if (mx < 1ll * i * min(buy[i], sell[i])) {
            mx = 1ll * i * min(buy[i], sell[i]);
            who = i;
        }
    }
    if (who == -1)
        cout << "impossible\n";
    else
        cout << fixed << setprecision(2) << (long double) who / 100.0 << ' ' << (long double) mx / 100.0 << '\n';
}

signed main() {
    ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
    int t = 1;

//    cin >> t;

    while (t--) {
        tc();
    }

    return 0;
}