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 Rust (1.15.1) (judge verdict: Accepted)

use std::io;

fn main() {
    let mut line = read::<String>();

    let len: usize = line.len();

    for _i in 0..len {
        line.pop();
    }
    for _i in 0..len {
        line.push('x');
    }
    println!("{}", line);
}

fn read<T: std::str::FromStr>() -> T {
    let mut line = String::new();
    io::stdin().read_line(&mut line).ok();
    line.trim().parse().ok().unwrap()
}