#297. withoutX

withoutX

Background

Description

Given a string, if the first or last chars are 'x', return the string without those 'x' chars, and otherwise return the string unchanged.

Format

Input

Output

Samples

xHix
"Hi"
xHi
"Hi"
Hxix
"Hxi"

Limitation

1s, 1024KiB for each test case.