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#include <iostream>
#include <vector>

using namespace std;

class Test {
    public:
    int chislo;

    Test () {}

    Test(int x) {
        chislo = x;
    }

    bool operator==(Test& other) {
        return chislo == other.chislo;
    }


};

ostream& operator<<(ostream& o, Test& x) {
    o << "chisloto e :" << x.chislo << endl;
    return o;
}

class Test2 {
    public:
    vector<Test> obekti;  // или вектор
    Test obekti_2[10000]; // или масив
    int last_element = 0;

    Test2 () {}

    // funkciq, koqto kazva dali ima element s opredelena stoinost na chislo
    // funkciq, koqto dobavq element

    void add(Test x) {
        obekti.push_back(x);
    }

    Test2* operator+(Test& x) {
        obekti.push_back(x);
        return this;
    }

    void add_array(Test x) {
        obekti_2[last_element++] = x;
        //last_element++;
    }



    bool findObject(int x) {
         bool found = false;
       // for (Test a : obekti) {
            //  if (obekti[i].chislo == x) found = true;
       // }

        for (int i = 0; i < obekti.size(); i++) {
            if (obekti[i].chislo == x) found = true;
        }

        return found;
    }
};

ostream& operator<<(ostream& o, Test2& x) {
    for (Test& a : x.obekti) {
        cout << a;
    }
    return o;
}

int main()
{

    Test a(12);
    Test b(23);

    Test2 y;
    y + b;
    y + a;


    cout << y;
    y.findObject(10);
    return 0;
}