How many passed

Problem

Students pass with 40 marks or more. Read name,mark lines and print how many students passed.

Example

Input

4
Asha,82
Ravi,39
Meena,40
John,12

Output

Asha and Meena passed.

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

Hint 1

Count with a loop or with sum over a condition.

Hint 2

Convert the mark to int first.

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