Class marks: total and average

Problem

A class teacher has the marks of every student in one test. Find the total of all marks and the class average.

Input: The first line has n, the number of students. The second line has n integers: the marks.
Output: Two lines: the total of the marks, then the average with exactly 2 digits after the decimal point.
Constraints: 1 ≤ n ≤ 1000
0 ≤ mark ≤ 100

Example

Input

5
72 85 64 90 58

Output

369
73.80

72 + 85 + 64 + 90 + 58 = 369, and 369 / 5 = 73.80.

Try the problem first. Open one hint at a time.

Hint 1

Read the marks into an array with a loop, then add them up with a second loop.

Hint 2

Divide as a double, not as an int, or 369 / 5 becomes 73.

Hint 3

Use printf with %.2f to print exactly two digits after the point.

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