Background

Description

Return true if the array contains, somewhere, three increasing adjacent numbers like .... 4, 5, 6, ... or 23, 24, 25.

Format

Input

Output

Samples

[1 4 5 6 2]

true

[1 2 3]

true

[1 2 4]

false

Limitation

1s, 1024KiB for each test case.