Accept a sequence of comma-separated integers as input and print the maximum value in the sequence as output.
Input
A single line holding one or more integers separated by commas, with no spaces around the commas.
Output
A single line: the largest integer in the sequence.
Example
Input
1,2,3,4,5
Output
5
Write a complete program: read the input with input() and print the result with print().
Input
1,2,3,4,5
Output
5