reverseRLE

def reverseRLE(s):
#@param s: str
#@return str
  new_str = ''
  jmp = 1
  lung = len(s)
  k = 1

  for i in range(lung):
    if s[i] != ' ':
      if not s[i].isdigit():
        new_str+=s[i]

      else:
        while s[i+k] == ' ' and i+k<lung:
          jmp+=1
          k+=1

        new_str+=(int(s[i])-1)*s[i+jmp]
        jmp = 1
        k = 1


  return new_str