Total of the marks

Problem

A teacher saves marks as CSV lines. Read the lines, split each with the csv module, and print the total of all marks.

Input: First line: n, the number of rows. Then n lines of the form name,mark (no header).
Output: One integer: the total of the marks.
Constraints: 1 ≤ n ≤ 100
0 ≤ mark ≤ 100
Names have no commas

Example

Input

3
Asha,82
Ravi,67
Meena,91

Output

Total is 82 + 67 + 91.

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

Hint 1

csv.reader accepts a list of lines, so collect the n lines first.

Hint 2

Each value is text. Convert the mark with int before adding.

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