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Description

Write a program that takes a series of numbers from the command-line argument
and print 1 if the values they provide are strictly ascending or descending, and print 0 if otherwise.

Format

Name your file as ex1_1.cpp

Input

Get a series of numbers from command-line argument input.

Output

Print 1 or 0.

Sample 1

Input

ex1_1 1 2 3 4

Output

1

Sample 2

Input

ex1_1 2 1 3 4

Output

0

Sample 3

Input

ex1_1 0 0 1

Output

0