Expensive Buying

Chef is in a shop with $N$ distinct items. The $i$-th item is sold at a price of $C_i$. Chef only wants expensive items, and so he has decided that he will buy the $K$ most expensive items. Find how much total cost Chef had to pay to buy the $K$ most expensive items. ### Input - The first line of input will contain a single integer $T$, denoting the number of test cases. - Each test case consist