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 Haskell (GHC 7.10.3) (judge verdict: Accepted)

main :: IO()
main = do
    s <- getLine
    putStrLn $ solve s

solve :: String -> String
solve (x:[]) = "x"
solve (x:xs) = "x" ++ solve xs