  * Press Alt+V four times to use this operator.
  */
 
-prefix operator √√√√ { }
+prefix operator √√√√
 
 @discardableResult
 public prefix func √√√√ (number: Int) -> Double {

 * Press Alt+V two times to use this operator.
 */

prefix operator √√ { }

@discardableResult
public prefix func √√ (number: Int) -> Double {

 * Press Alt+V six times to use this operator.
 */

prefix operator √√√√√√

@discardableResult
public prefix func √√√√√√ (number: Int) -> Double {
