I have an XML file looks like this :

```
<?xml version="1.0" encoding="UTF-8"?>
<INITIAL>
    <FB1>a</FB1>
    <FB2>b</FB2>
    <FB3>c</FB3>
    <FB4>d</FB4>
    <FB5>e</FB5>
    <FB6>f</FB6>
    <FB7>g</FB7>
    <FB8>h</FB8>
    <FB9>i</FB9>

</INITIAL>

```

I just want to read element a to iand convert it to string, be like this :

```
abcdefghi

```