Spark ver. 3.0 c

Level  2 - IABI
Level  3 - CBBD
Level  4 - JABJ
Level  5 - GBBH
Level  6 - DCBF
Level  7 - CBBD
Level  8 - CCBE
Level  9 - CDBF
Level 10 - DBBE
Level 11 - GCBI
Level 12 - JDBM
Level 13 - CFBH
Level 14 - ICBK
Level 15 - EEBI
Level 16 - AGBG
Level 17 - ICBK
Level 18 - HEBL
Level 19 - GGBM
Level 20 - GCBI
Level 21 - IEBM
Level 22 - AHBH
Level 23 - CJBL
Level 24 - HEBL
Level 25 - CHBJ
Level 26 - HJBQ
Level 27 - EEBI
Level 28 - CHBJ
Level 29 - AACA
Level 30 - JDBM
Level 31 - AHBH
Level 32 - BACB
Level 33 - CDCF
Level 34 - IDBL
Level 35 - FEBJ
Level 36 - CFBH
Level 37 - CEBG
Level 38 - CFBH
Level 39 - CGBI
Level 40 - EEBI
Level 41 - HFBM
Level 42 - AHBH
Level 43 - DIBL
Level 44 - AGBG
Level 45 - GHBN
Level 46 - CJBL
Level 47 - BGBH
Level 48 - AIBI
Level 49 - JJBS
Level 50 - AGBG
Level 51 - CIBK