void fWrite(string strEncrypted);
string fRetrieve();
string fEncrypt(string strInput);

void main()
{
    string TEMP;
    string strEncrypted;
    string strInput;
    cin >> strInput;
    strEncrypted = fEncrypt(strInput);
    cout << strEncrypted << endl;
    fWrite(strEncrypted);
    TEMP = fRetrieve();

    cin >> TEMP;
    return;
};

string fEncrypt(string strInput)
{
    int nLen = (strInput.length());
    for(int nPos = 0; nPos < nLen; nPos++)
    {
        strInput[nPos]=(((strInput[nPos])+(nPos+1))*2);
    };
    return strInput;
};

void fWrite(string strWrite)
{
    ofstream filePassword;
    filePassword.open("password.txt");
    filePassword << strWrite;
    filePassword.close();

    return;
};

string fRetrieve()
{
    string strPassword;
    ifstream filePassword("password.txt");
    filePassword >> strPassword;

    //Decrypt the string
    int nLen = (strPassword.length());
    for(int nPos = 0; nPos < nLen; nPos++)
    {
        strPassword[nPos]=(((strPassword[nPos])-(nPos+1))/2);
    };

    cout << strPassword;
    return strPassword;
};