Avoiding Overlapping Subplot Titles

Halewood Reporting gives each panel of a figure its own heading, and by default those headings collide with whatever sits above them — the panels are placed on a fixed grid that takes no account of how much text ends up around them. A spacing pass at the end pushes the panels apart until nothing overlaps. Under the finished figure the brief prints the day's total.

Task: Print the total of all the values as a whole number, with no decimal point. Any fractional part is dropped rather than rounded.

Input

The first line holds an integer n, the number of values. Each of the next n lines holds one value, possibly with decimals. n is at least 1.

Output

One line holding a whole number, with no decimal point and no trailing zero.

Example:

Input:
3
5
10
15

Output:
30