Logic to print data in required format for XML

 Hi,
Please find the xml format:

<ListOf_ssFsInvoice>
<ssFsInvoice>
<ListOf_ssFsInvoiceLineItems>
<ssFsInvoiceLineItems>
<ListOf_ssFsInvoiceLineItemDetails>
<ssFsInvoiceLineItemDetails>
<ssDnrmPartBillingType>Paid</ssDnrmPartBillingType>
<ListOf_ssFsInvoiceLineItemDetailTaxes>
<ssFsInvoiceLineItemDetailTaxes>
<ssTaxName>VAT</ssTaxName>
<ssAmount>1000</ssAmount>
</ssFsInvoiceLineItemDetailTaxes>
<ssFsInvoiceLineItemDetailTaxes>
<ssTaxName>Entry</ssTaxName>
<ssAmount>2000</ssAmount>
</ssFsInvoiceLineItemDetailTaxes>
<ssFsInvoiceLineItemDetailTaxes>
<ssTaxName>XYZ</ssTaxName>
<ssAmount>500</ssAmount>
</ssFsInvoiceLineItemDetailTaxes>
</ListOf_ssFsInvoiceLineItemDetailTaxes>
</ssFsInvoiceLineItemDetails>
</ListOf_ssFsInvoiceLineItemDetails>
</ssFsInvoiceLineItems>
</ListOf_ssFsInvoiceLineItems>
</ssFsInvoice>
</ListOf_ssFsInvoice>

Requirement:
1.For ssDnrmPartBillingType = Paid print total of ssAmount for similar ssTaxName and repeated items appear only once(similar ssTaxName should appear only once).
2.e.g.
Line item 1:
Paid VAT 1000
Paid Entry 200
Paid XYZ 100
Line item 2:
Paid VAT 100
Paid Entry 100
Paid XYZ 50

---

Report Output
VAT 1100
Entry 300
XYZ 150

and so on.