cout << "<FIRST TEST>" << endl;
    List mainList;
    mainList += 1;
    mainList += 2;
    mainList += 3;
    mainList += 4;
    mainList += 5;
    mainList += 6;
    mainList += 7;
    mainList += 8;
    mainList += 9;
    mainList += 0;
    cout << "Main list before merge:" << endl << mainList << endl;

    List mergedList;
    mergedList += 5;
    mergedList += 7;
    mergedList += 1;
    mergedList += 0;
    mergedList += 3;
    mergedList += 63;
    mergedList += 4;
    mergedList += 3;
    mergedList += 5;
    mergedList += 43;
    cout << "Merged list before merge:" << endl << mergedList << endl;

    if (mainList == mergedList)
    {
        cout << "Main and merge lists are equal" << endl;
    }
    else
    {
        cout << "Main and merge lists are not equal" << endl;
    }

    List andList = (mainList & mergedList);
    List orList = (mainList | mergedList);
    mergedList.merge(mainList);

    cout << endl << "User list after merge:" << endl << mainList << endl;
    cout << "Merged list after merge:" << endl << mergedList << endl;
    cout << "And list:" << endl << andList << endl;
    cout << "Or list:" << endl << orList << endl;

    cout << endl << endl << "<SECOND TEST>" << endl;
    List mainListNo2;
    mainListNo2 += 56;
    mainListNo2 += 21;
    mainListNo2 += 0;
    mainListNo2 += 3;
    mainListNo2 += 8;
    mainListNo2 += -14;
    mainListNo2 += 76;
    mainListNo2 += -9;
    mainListNo2 += 0;
    mainListNo2 += 3;
    cout << "Main list before merge:" << endl << mainListNo2 << endl;

    List mergedListNo2;
    mergedListNo2 += -45;
    mergedListNo2 += 7;
    mergedListNo2 += 1;
    mergedListNo2 += 0;
    mergedListNo2 += 8;
    mergedListNo2 += 5;
    mergedListNo2 += 2;
    mergedListNo2 += -35;
    mergedListNo2 += 8;
    mergedListNo2 += 3;
    cout << "Merged list before merge:" << endl << mergedListNo2 << endl;

    if (mainListNo2 == mergedListNo2)
    {
        cout << "Main and merge lists are equal" << endl;
    }
    else
    {
        cout << "Main and merge lists are not equal" << endl;
    }

    List andListNo2 = (mainListNo2 & mergedListNo2);
    List orListNo2 = (mainListNo2 | mergedListNo2);
    mergedListNo2.merge(mainListNo2);

    cout << endl << "User list after merge:" << endl << mainListNo2 << endl;
    cout << "Merged list after merge:" << endl << mergedListNo2 << endl;
    cout << "And list:" << endl << andListNo2 << endl;
    cout << "Or list:" << endl << orListNo2 << endl;