L = [hex(i)[2:].rjust(2,'0').upper() for i in range(0,256)]
L.sort(key=lambda s : (int(''.join(c if c.isdigit() else ' ' for c in s).split
()[0] if s[:1].isdigit() else 0),s))
print(', '.join(L))

# 00, 0A, 0B, 0C, 0D, 0E, 0F, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, AA, AB, AC, AD, AE, AF, B0, B1, B2, B3, B4, B5, B6, B7, B8, B9, BA, BB, BC, BD, BE, BF, C0, C1, C2, C3, C4, C5, C6, C7, C8, C9, CA, CB, CC, CD, CE, CF, D0, D1, D2, D3, D4, D5, D6, D7, D8, D9, DA, DB, DC, DD, DE, DF, E0, E1, E2, E3, E4, E5, E6, E7, E8, E9, EA, EB, EC, ED, EE, EF, F0, F1, F2, F3, F4, F5, F6, F7, F8, F9, FA, FB, FC, FD, FE, FF, 01, 1A, 1B, 1C, 1D, 1E, 1F, 02, 2A, 2B, 2C, 2D, 2E, 2F, 03, 3A, 3B, 3C, 3D, 3E, 3F, 04, 4A, 4B, 4C, 4D, 4E, 4F, 05, 5A, 5B, 5C, 5D, 5E, 5F, 06, 6A, 6B, 6C, 6D, 6E, 6F, 07, 7A, 7B, 7C, 7D, 7E, 7F, 08, 8A, 8B, 8C, 8D, 8E, 8F, 09, 9A, 9B, 9C, 9D, 9E, 9F, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99