Number of data bits (k): 4
Number of parity bits (r): 4
Number of codeword bits (n): 8
G =
[[1, 0, 0, 0, 0, 1, 1, 1],
 [0, 1, 0, 0, 1, 0, 1, 1],
 [0, 0, 1, 0, 1, 1, 0, 1],
 [0, 0, 0, 1, 1, 1, 1, 0]]
