Create a function that takes a string and censors words over four characters with *.

Examples

censor("The code is fourty") ➞ "The code is ******"

censor("Two plus three is five") ➞ "Two plus ***** is five"

censor("aaaa aaaaa 1234 12345") ➞ "aaaa ***** 1234 *****"

Notes

• Don't censor words with exactly four characters.
• If all words have four characters or less, return the original string.
• The amount of * is the same as the length of the word.