text: @interface NSString (RosettaCodeAddition)
  - (NSString *) repeatStringByNumberOfTimes: (NSUInteger) times;
  @end
  
  @implementation NSString (RosettaCodeAddition)
  - (NSString *) repeatStringByNumberOfTimes: (NSUInteger) times {
      return [@"" stringByPaddingToLength:[self length]*times withString:self startingAtIndex:0];
  }
  @end
  