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 Go (1.6) (judge verdict: Accepted)

package main

import (
	"fmt"
)

func main() {
	count := len(readLine())
	loop(0, count, func(i int) {
		fmt.Print("x")
	})
}

func loop(start, end int, f func(i int)) {
	for i := start; i < end; i++ {
		f(i)
	}
}

func readLine() string {
	var v string
	fmt.Scanln(&v)
	return v
}