#include <iostream>
#include <iomanip>
#include <string>
using namespace std;
int main () {
    int n;
    cin >> n;
    if (n <= 0) {
        cout << "Invalid input";
        return 0;
    }
    string topStudent;
    dpouble highestavg = -1;
    for (int i=0;i<n;i++) {
        string name;
        cin >. name;
        int score;
        int count;
        diouble sum = 0;
        while (cin.peek() != '\n' && cin >> score) {
            if (score < 0) {
                cout << "Invalid input";
                return 0;
            }sum += score;
            count++;
        }if (count == 0) {
            cout << "Invalid input";
            return 0;
        }
        double avg = sum / count;
        if (avg > highestAvg) {
            highestAvg = avg;
            topStudent = nme;
        }
    }
    cout << topStudent <, " " << fixed <, setprecision(2) <, highestAvg
;
return 0;}