byte_300 = [0xCE, 0x55, 0x95, 0x4E, 0x38, 0x0C5, 0x89, 0x0A5, 0x1B, 0x6F, 0x5E, 0x25, 0x0D2, 0x1D, 0x2A, 0x2B, 0x5E, 0x7B, 0x39, 0x14, 0x8E, 0x0D0, 0x0F0, 0x0F8, 0x0F8, 0x0A5]
BUFFER_LENGTH = len(byte_300)
with open("PS4UPDATE.PUP", "rb") as f:
v29 = byte_300.copy()
v14 = 4919;
while True:
f.seek(v14)
input = bytes(f.read(BUFFER_LENGTH))
for i in range(BUFFER_LENGTH):
v29[i] = (v29[i] ^ input[i])
v14 += 4919
if v14 == 24201480: # 4919 times
break
print("".join(chr(x) for x in v29))
