C++ Extra Extra Extra Credit Password Generator

#include <iostream>
#include <string>
#include <ctime>

using namespace std;

/*
    You're challenge for today is to create a random password generator!
    For extra credit, allow the user to specify the amount of passwords to generate.
    For even more extra credit, allow the user to specify the length of the strings he wants to generate!
*/

int main()
{
    srand( time(NULL) );
    char CHA;
    int LENGTH = 0, AMOUNT = 0, NUMBERS = 0, LETTERS = 0, CAPITALS = 0, SPECIAL = 0, RAND1 = 0, RAND2 = 0;
    bool numbers = false, letters = false, capitals = false, special = false;
    string STRINGLET = "abcdefghijklmnopqrstuvwxyzzflkjda"; //31
    string STRINGCAP = "ABCDEFGHIJKLMNOPQRSTUVWXYZSRTKLJD"; //31
    string STRINGNUM = "012345678901234567890123456789016"; //31
    string STRINGSPE = "`~!@#$%^&*()_+-={}[]|\\:\";'<>?,./"; //31

    cout << "Lenght of password in positive whole numbers? (Maximum 50 characters):  ";
    cin >> LENGTH;

    cout << "\nHow many passwords of " << LENGTH << " characters would you like to generate?  ";
    cin >> AMOUNT;

    if( LENGTH > 0 && LENGTH < 51 && AMOUNT > 0 )
    {
        cout << "\nWould you like to include letters in your password? (Y/N):  ";
        cin >> CHA;
        if( CHA == 'y' || CHA == 'Y' )
        {
            letters = true;
        }

        cout << "\nWould you like to include CAPITAL letters in your password? (Y/N):  ";
        cin >> CHA;
        if( CHA == 'y' || CHA == 'Y' )
        {
            capitals = true;
        }

        cout << "\nWould you like to include numbers in your password? (Y/N):  ";
        cin >> CHA;
        if( CHA == 'y' || CHA == 'Y' )
        {
            numbers = true;
        }

        cout << "\nWould you like to include special characters in your password? (Y/N):  ";
        cin >> CHA;
        if( CHA == 'y' || CHA == 'Y' )
        {
            special = true;
        }

        if( letters == false && numbers == false && capitals == false && special == false )
        {
            cout << "You haven't selected any characters for your passwords to be generated from.\nProgram terminated.\n";
            cin.get();
            cin.get();
            return 1;
        }

        cout << "\n\nPasswords:\n\n";
        for( int X = 0; X != AMOUNT; X++ )
        {
            for( int Y = 0; Y != LENGTH; Y++ )
            {
                if( letters == true && numbers == false && special == false && capitals == false )
                {
                    RAND2 = rand() % 31 + 0;
                    cout << STRINGLET[RAND2];
                }
                if( numbers == true && letters == false && capitals == false && special == false )
                {
                    RAND2 = rand() % 31 + 0;
                    cout << STRINGNUM[RAND2];
                }
                if( capitals == true && numbers == false && letters == false && special == false )
                {
                    RAND2 = rand() % 31 + 0;
                    cout << STRINGCAP[RAND2];
                }
                if( special == true && capitals == false && numbers == false && letters == false )
                {
                    RAND2 = rand() % 31 + 0;
                    cout << STRINGSPE[RAND2];
                }
                if( letters == true && capitals == true && numbers == false && special == false )
                {
                    RAND1 = rand() % 2 + 1;
                    RAND2 = rand() % 31 + 0;
                    if ( RAND1 == 1 )
                    {
                        cout << STRINGLET[RAND2];
                    }
                    if ( RAND1 == 2 )
                    {
                        cout << STRINGCAP[RAND2];
                    }
                }
                if( letters == true && numbers == true && capitals == false && special == false )
                {
                    RAND1 = rand() % 2 + 1;
                    RAND2 = rand() % 31 + 0;
                    if ( RAND1 == 1 )
                    {
                        cout << STRINGLET[RAND2];
                    }
                    if ( RAND1 == 2 )
                    {
                        cout << STRINGNUM[RAND2];
                    }
                }
                if( letters == true && special == true && numbers == false && capitals == false )
                {
                    RAND1 = rand() % 2 + 1;
                    RAND2 = rand() % 31 + 0;
                    if ( RAND1 == 1 )
                    {
                        cout << STRINGLET[RAND2];
                    }
                    if ( RAND1 == 2 )
                    {
                        cout << STRINGSPE[RAND2];
                    }
                }
                if( capitals == true && special == true && numbers == false && letters == false )
                {
                    RAND1 = rand() % 2 + 1;
                    RAND2 = rand() % 31 + 0;
                    if ( RAND1 == 1 )
                    {
                        cout << STRINGCAP[RAND2];
                    }
                    if ( RAND1 == 2 )
                    {
                        cout << STRINGSPE[RAND2];
                    }
                }
                if( numbers == true && capitals == true && letters == false && special == false )
                {
                    RAND1 = rand() % 2 + 1;
                    RAND2 = rand() % 31 + 0;
                    if ( RAND1 == 1 )
                    {
                        cout << STRINGCAP[RAND2];
                    }
                    if ( RAND1 == 2 )
                    {
                        cout << STRINGNUM[RAND2];
                    }
                }
                if( special == true && numbers == true && capitals == false && letters == false )
                {
                    RAND1 = rand() % 2 + 1;
                    RAND2 = rand() % 31 + 0;
                    if ( RAND1 == 1 )
                    {
                        cout << STRINGNUM[RAND2];
                    }
                    if ( RAND1 == 2 )
                    {
                        cout << STRINGSPE[RAND2];
                    }
                }
                if( letters == true && capitals == true && numbers == true && special == false )
                {
                    RAND1 = rand() % 3 + 1;
                    RAND2 = rand() % 31 + 0;
                    if ( RAND1 == 1 )
                    {
                        cout << STRINGLET[RAND2];
                    }
                    if ( RAND1 == 2 )
                    {
                        cout << STRINGCAP[RAND2];
                    }
                    if ( RAND1 == 3 )
                    {
                        cout << STRINGNUM[RAND2];
                    }
                }
                if( letters == true && capitals == true && special == true && numbers == false )
                {
                    RAND1 = rand() % 3 + 1;
                    RAND2 = rand() % 31 + 0;
                    if ( RAND1 == 1 )
                    {
                        cout << STRINGLET[RAND2];
                    }
                    if ( RAND1 == 2 )
                    {
                        cout << STRINGCAP[RAND2];
                    }
                    if ( RAND1 == 3 )
                    {
                        cout << STRINGSPE[RAND2];
                    }
                }
                if( letters == true && numbers == true && special == true && capitals == false )
                {
                    RAND1 = rand() % 3 + 1;
                    RAND2 = rand() % 31 + 0;
                    if ( RAND1 == 1 )
                    {
                        cout << STRINGLET[RAND2];
                    }
                    if ( RAND1 == 2 )
                    {
                        cout << STRINGNUM[RAND2];
                    }
                    if ( RAND1 == 3 )
                    {
                        cout << STRINGSPE[RAND2];
                    }
                }
                if( numbers == true && capitals == true && special == true && letters == false )
                {
                    RAND1 = rand() % 4 + 2;
                    RAND2 = rand() % 31 + 0;

                    if ( RAND1 == 2 )
                    {
                        cout << STRINGCAP[RAND2];
                    }
                    if ( RAND1 == 3 )
                    {
                        cout << STRINGNUM[RAND2];
                    }
                    if ( RAND1 == 4 )
                    {
                        cout << STRINGSPE[RAND2];
                    }
                }
                if( letters == true && capitals == true && numbers == true && special == true )
                {
                    RAND1 = rand() % 4 + 1;
                    RAND2 = rand() % 31 + 0;
                    if ( RAND1 == 1 )
                    {
                        cout << STRINGLET[RAND2];
                    }
                    if ( RAND1 == 2 )
                    {
                        cout << STRINGCAP[RAND2];
                    }
                    if ( RAND1 == 3 )
                    {
                        cout << STRINGNUM[RAND2];
                    }
                    if ( RAND1 == 4 )
                    {
                        cout << STRINGSPE[RAND2];
                    }
                }
            }
            cout << "\n";
        }
    }
    else
    {
        cout << "You've entered an incorrect number for the length or amount, the program will now end." << endl;
    }
    cout << "\n\nDone.\n\nPress Enter to Quit!";
    cin.get();
    cin.get();
    return 0;
}