Say you have a RAID level $5$ disk system, where one of the data blocks has become unreadable. This particular system has $6$ disks and for the sake of the exercise we'll assume the absurdly small block size of $8$ bits. We can read the parity$-$grouped data from disks $3,4,6,$ and $1$ and the parity block from disk $2.$ They are respectively $00010101,00000000,10101010,$ and $11110001$ with parity block $11110111.$ What are the contents of the missing block from disk $5?$