Maximum length of a monotone fragment
                                         
                                         
                            
                             
                                         
                                          Problem 
                         
                                 Given a sequence of natural numbers ending with the number 0. Determine the maximum length of a monotone fragment of the sequence (that is, such a fragment where all elements are either greater than the previous one or less).
Input
A sequence of natural numbers is entered, ending with the number 0 (the number 0 itself is not included in the sequence, but serves as a sign of its termination).
Imprint 
Print the answer to the problem.
 
 
Examples
| # | Input | Output | 
| 1 | 9 7
 7
 9
 7
 0
 | 2 | 
Запрещенные операторы: list