#include <iostream>
#include <iomanip>

using namespace std;

typedef struct {
    string id;
    string name;
    double price;
} book;

typedef struct {
    book books[];
    int number_of_books;
} book_and_number;

double max_price(book *books, int n) {
    double max_price = 0;
    for (int i = 0; i < n; i++) {
        if (books[i].price > max_price) {
            max_price = books[i].price;
        }
    }
    return max_price;
}

book_and_number max_price_books(book *books, int n) {
    double max_price = max_price(books, n);

    book_and_number books_and_number;
    book max_price_books[];

    books_and_number.number_of_books = 0;
    for (int i = 0; i < n; i++) {
        if (books[i].price == max_price) {
            max_price_books[i] = books[i];
            books_and_number.number_of_books++;
        }
    }
    books_and_number.books = &max_price_books;
    return books_and_number;
}

void input(book *books, int n) {
    for (int i = 0; i < n; i++) {
        cin >> books[i].id >> books[i].name >> books[i].price;
    }
}

void output(book_and_number books_and_number) {
    cout << books_and_number.number_of_books << endl;
    for (int i = 0; i < books_and_number.number_of_books; i++) {
        cout << books_and_number.books[i].id << "\t" << books_and_number.books[i].name << "\t" << fixed <<
                setprecision(2) <<
                books_and_number.books[i].price << endl;
    }
}

int main() {
    book books[100];
    int n;
    cin >> n;
    input(books, n);
    max_price(books, n);
    book_and_number books_and_number = max_price_books(books, n);
    output(books_and_number);
    return 0;
}