How to write a link query to get the below results

Question

A	B	C
Naresh	Suresh	6
Ramesh	Rupesh	6
xyz	abc	10
pqr	asdd	6
asdsd	rewe	12
wesd	sfyere	6
sdyed	hesyd	12
ghedg	sged	12

How to write linq query in c# to get the first sequence of 'C' column with 6 and immidiate value is 12.

From the above table expected result should be 

pqr

asdd

6

Thanks in advance.