text: #include <iostream>
  
  using namespace std;
  
  int main()
  {
      int const TAM = 20;
  
      int vet[TAM], aux;
  
      for(int i = 0; i < TAM; i++)
          cin >> vet[i];
      for(int i = 0, j = TAM - 1; i < TAM / 2; i++, j--) {
          aux = vet[i];
          vet[i] = vet[j];
          vet[j] = aux;
      }
  
      for(int i = 0; i < TAM; i++)
          cout << "N["<<i<<"] = " << vet[i] << endl;
      return 0;
  }
  