Description

Please input $n$, then input $n$ random natural numbers in the second line, find their sum then output it.

Input Format

The first line of an integer is $n$. The second line is $n$ random numbers

Output Format

An integer which is the sum.

10
9 89 678 90 -100 2 81 222 989 777

2837

Limit and hint

For $100\%$ testcases， $n\leq10^3$。