Children and Candies

There are $N$-children in Google Student Community. Mr. Naveen will arrange the children in a line, then give $1$ candy to the first child in the line, $2$ candies to the second child, ..., $N$ candies to the $N$-th child. How many candies will be necessary in total? ###Input: - First-line will contain $T$, the number of test cases. Then the test cases follow. - Each test case contains of a sin