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 Scala (2.11.7) (judge verdict: Accepted)

object Main extends App {
  val s = io.StdIn.readLine()
  val buf = new StringBuilder()
  val len = s.length
  for (_ <- 0 until len) buf += 'x'
  println(buf.toString())
}