String First Two Chars 'x'

Background

Congcong is currently learning about string manipulation. He encountered an interesting problem that requires special handling of the beginning of a string.

Problem Description

Given a string, if one or both of the first 2 characters is 'x', return the string without those 'x' characters, and otherwise return the string unchanged. This is a little harder than it looks.

Input Format

Input is given from standard input in the following format.

s

Output Format

Output is given to standard output in the following format.

result_s

Sample

xHi

Hi

Hxi

Hi

Hi

Hi

Sample Explanation

For the first sample, the first character is 'x', so it is removed. For the second sample, the second character is 'x', so it is removed. For the third sample, neither of the first two characters is 'x', so the string remains unchanged.

Constraints

Time limit: 1s, Memory limit: 1024KiB for each test case.