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)

import scala.io.StdIn._

object Main  {
  def main(args: Array[String]): Unit = {
    println(solve2(readLine.trim))
  }
  def solve2(s: String): String = s.split("").tail.map(_ => "x").reduce((curr, next) => curr + next)
}