14

#include <iostream> //exercise 14
#include <string> //delete words which include all letters from the first word
#include <fstream>
#include <vector>

using namespace std;

bool includes(string first, string s)
{
    vector<char> a;
    for(unsigned i = 0; i < first.length(); i++)
        if (first[i] >= 'a' && first[i] <= 'z' || first[i] >= 'A' && first[i] <= 'Z' )
            a.push_back(first[i]);
    //for(unsigned j = 0; j < a.size(); j++)
    //  cout << a[j] << " ";
    //cout << endl;
    vector<bool> incAll(a.size(), true);
    for(unsigned i = 0; i < s.length(); i++)
        for(unsigned j = 0; j < a.size(); j++)
        {
            if (a[j] == s[i])
                incAll[j] = false;
        }
    bool NOinclusion = false;
    //for(unsigned j = 0; j < incAll.size(); j++)
    //  cout << incAll[j] << " ";
    //cout << endl;
    for(unsigned j = 0; j < incAll.size(); j++)
        NOinclusion += incAll[j];
    //cout << NOinclusion << endl;
    if (NOinclusion)
        return false;
    else
        return true;
}

int main()
{
        ifstream in("input.txt");
        ofstream out("output.txt");

        string first;
        string s;
        bool firstWas = false;
        bool firstNoErase = true;
        while(in >> s)
        {
            if (!firstWas)
            {
                firstWas = true;
                first = s;
            }
            if (!includes(first, s) || firstNoErase)
                out << s << " ";
            firstNoErase = false;
        }

        in.close();
        out.close();
        system("pause");
        return 0;
}