data = []
for i in range(0, 2):
  start = end
  end += 4
  (length,) = _struct_I.unpack(str[start:end])
  start = end
  end += length
  if python3:
    val0 = str[start:end].decode('utf-8')
  else:
    val0 = str[start:end]
  data.append(val0)