#include <iostream>

using namespace std;

int
main ()
{
  int vet1[10], vet2[10], counter[10];

  for (int i = 0; i < 10; i++)
    {
      counter[i] = 0;
    }

  cout << "Inizio input" << endl;

  for (int i = 0; i < 10; i++)
    {
      cin >> vet1[i];
    }

  cout << "fine vettore 1" << endl;

  for (int i = 0; i < 10; i++)
    {
      cin >> vet2[i];
    }

  cout << "fine vettore 2" << endl;

  cout << "Verifico presenze comuni" << endl;

  for (int i = 0; i < 10; i++)
    {
      for (int j = 0; j < 10; j++)
	if (vet1[i] == vet2[j])
	  {
	    cout << vet1[i];
	    break;
	  }
    }

  cout << endl << "Numero maggiormente presente" << endl;

  for (int i = 0; i < 10; i++)
    {
      for (int j = 0; j < 10; j++)
	if (vet1[i] == vet2[j])
	  {
	    counter[i]++;
	  }
    }

  int max_index = 0;
  for (int i = 0; i < 10; i++)
    {
      if (counter[i] > max_index)
	max_index = i;
    }

  cout << vet1[max_index];



  return 0;
}