Problem:
Score : 200 points

Problem Statement

Given is a string S. Replace every character in S with x and print the result.

Constraints

S is a string consisting of lowercase English letters.

The length of S is between 1 and 100 (inclusive).

Input

Input is given from Standard Input in the following format:

S

Output

Replace every character in S with x and print the result.

Sample Input 1

sardine

Sample Output 1

xxxxxxx

Replacing every character in S with x results in xxxxxxx.

Sample Input 2

xxxx

Sample Output 2

xxxx

Sample Input 3

gone

Sample Output 3

xxxx

Solution in Ruby (2.3.3) (judge verdict: Accepted)

input = gets.split('').map{ |d| d.chomp}
str_arr = Array.new
str = String.new
i = 0
while input.count - 1 > i do
  str_arr[i] = "x"
  i += 1
end
str_arr.each do |d|
  str = str + d
end
puts str