1

#include <iostream>
#include <map>
#include <set>
#include <string>
int main() {
    int amount, page;
    std::string name;
    std::cin >> amount;
    std::map <std::string, std::set<int> > words_pages;
    for (int i = 0; i != amount; i++) {
        std::cin >> page >> name;
        auto it = words_pages.find(name);
        if (it != words_pages.end()) {
            words_pages[name].insert(page);
        } else {
            std::pair<std::string, std::set<int> > aux;
            aux.first = name;
            aux.second.insert(page);
            words_pages.insert(aux);
        }
    }
    for (std::pair<std::string, std::set<int> > x : words_pages) {
        std::cout << x.first << ' ';
        for (auto it = x.second.begin(); it != x.second.end(); ++it) {
            std::cout << *it;
            if (it != --x.second.end()) {
                std::cout << ' ';
            }
        }
        std::cout << std::endl;
    }
    return 0;
}