#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int main() {
  int n, m;
  cin >> n >> m;
  map<string, int> mp;
  rep(_, n + m) {
    string s;
    int a;
    cin >> s >> a;
    mp[s] = a;
  }
  for (auto [k, v] : mp) {
    cout << k << ' ' << v << endl;
  }
  return 0;
}