password = b"b9yPw:MwqcoHuFz^r-o*{>I\020Y"

def reverse_transformation(input_bytes):
    input_bytes = bytearray(input_bytes)  # Convert to mutable bytearray
    for i in range(len(input_bytes)):
        input_bytes[i] = (input_bytes[i] + 2) % 256      # Step 1: Add 2
        input_bytes[i] ^= (i + 0xa)                      # Step 2: XOR with (i + 0xa)
    return bytes(input_bytes)  # Convert back to bytes

real_password = reverse_transformation(password)

with open("password.bin", "wb") as f:
    f.write(real_password)