text: class StringUtils:
      """
      @param: originalStr: the string we want to append to
      @param: size: the target length of the string
      @param: padChar: the character to pad to the left side of the string
      @return: A string
      """
      @classmethod
      def leftPad(self, originalStr, size, padChar=' '):
          # write your code here
          if size<=len(originalStr):
              return originalStr
          else:
              diff=size-len(originalStr)
              l=""
              while diff>0:
                  l=l+padChar
                  diff-=1
              return l+originalStr
  
      @classmethod
      def leftPad(self, originalStr, size, padChar=' '):
          # write your code here
          if len(originalStr) >= size:
              return originalStr
          return (size - len(originalStr)) * padChar + originalStr