Keeping the Shawaal fasts before one's qadha fasts
Q: There is only one week remaining of Shawaal, and I want to keep the six fasts of Shawaal. However, I have 13 qadha fasts to keep. Should I keep the qadha fasts first and miss the six fasts of Shawaal or can I keep the six fasts first and thereafter make up the qadha fasts?