Instructions: Given a sentence in the Japanese, provide an equivalent translation in Lao that retains the same meaning through the translation. In translation, keep numbers as it is.
Input: Mｋｎ４２１までの距離は４億光年である。
Output:
ໄລຍະທາງຫາ Mkn 421 ແມ່ນ 400ລ້ານປີແສງ.