Order count and total

Problem

A shop stores order amounts in a linked list. Print how many orders there are and their total amount.

Example

Input

40 25 10 5

Output

4 80

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

Hint 1

Walk once, adding 1 to a counter and the value to a total.

Hint 2

Python integers do not overflow, so large totals are fine.

Write your Python code, run it on the examples and submit it to hidden tests.