#include <iostream>
#include <iterator>
#include <string>
#include <algorithm>
#include <map>
 
template <typename T, typename U>
struct Pair : std::pair<T, U>
{
   using std::pair<T, U>::pair;
 
   friend std::ostream& operator<<(std::ostream& os, const Pair& p) {
      return os << p.first << ' ' << p.second;
   }
 
   friend std::istream& operator>>(std::istream& is, Pair& p) {
      return is >> p.first >> p.second;
   }
};
 
int main()
{
   std::map<std::string, int> map;
 
   using pair_t = Pair<std::string, int>;
   using input = std::istream_iterator<pair_t>;
   using output = std::ostream_iterator<pair_t>;
 
   std::copy(input(std::cin), input(), std::inserter(map, map.begin()));
   std::copy(map.begin(), map.end(), output(std::cout, "\n"));
 
   return 0;
}

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Hello 1 beatiful 2 world 3