Bruteforce the swapped bit by checking hamming codes
Code here: [https://github.com/blatchley/CTF_Writeups/blob/master/2020/NACTF/crypto/CryptoWriteups.md#error-1](https://github.com/blatchley/CTF_Writeups/blob/master/2020/NACTF/crypto/CryptoWriteups.md#error-1)