Your task is to add together a series of integers and output the sum of them all.

Input Specification

The first line of input, ~n~ ~(1 \le n \le 30)~, will be the number of integers that need to be added together.
The next ~n~ lines will each contain an integer, ~n_i~ ~(0 \le n_i \le 2^{31}-1)~, representing a number that must be added.

Output Specification

The output should be the sum of all integers. It is guaranteed that this sum will be less than ~2^{31}-1~.

Sample Input

3
5
9
2

Output for Sample Input

16

Explanation for Sample Output

The first line of input, 3, shows that there are 3 numbers that need to be added.
The next 3 lines contian the integers 5, 9, and 2. This means our output should be the result of ~5 + 9 + 2~, which is ~16~.