#https://github.com/unknownhad/CTFWriteups/edit/main/SEETF2023/DecompilMe.md#SEE{s1mP4l_D3c0mp1l3r_XDXD}from pwn import xor
with open('output.txt', 'rb') as f:    enc = f.read()
flag_len = len(enc)a = enc[0:flag_len // 3]b = enc[flag_len // 3:2 * flag_len // 3]c = enc[2 * flag_len // 3:]
# reverse the final encryption stepc = xor(c, int(str(flag_len)[0]) * int(str(flag_len)[1]))
# reverse the second round of XOR operationsc = xor(c, b)b = xor(b, a)a = xor(a, c)
# reverse the first round of XOR operationsc = xor(c, b)b = xor(b, a)a = xor(a, int(str(flag_len)[0]) + int(str(flag_len)[1]))
flag = a + b + c
print(flag.decode())