f = open("unknown.txt", mode="rb+")
f.read()
s = b"v\xdb^tN\r\x91\xcdge\xff\x0cN\x00e\xe5\x96\xbeQ\x8dfh0\x02\x00\nS\xcae\xf6_SR\xc9R\xb1\xff\x0c\\\x81g\x08N   ...: \r_\x85N\xba0\x02\x00\n&\x15\xfe\x0f\x00\n"
s.decode("utf_16_be")
with open("known.txt", "w", encoding="utf-8") as a:
    a.write("盛年不重来，一日难再晨。\r\n")
    a.write("及时当勉励，岁月不待人。\r\n")
    a.write("☕️\r\n")