#include <vector>
#include <iostream>
#include <fstream>
#include <string>

using namespace std;

int main()
{ vector <string> V;

  ifstream F;
  F.open("39steps.txt");
  if (F.fail())
  { cout << "Couldn't open the file\n";
    exit(1); }

  while (true)
  {
    string W;
    F >> W;
    if (F.fail())
      break;

    bool found = false;
    for (int i = 0; i < V.size(); i += 1)
      if (V[i] == W)
      { found = true;
        break; }

    if (found)
      continue;

    V.push_back(W); }

  F.close();
  cout << "There were " << V.size() << " different words\n"; }