    New chain ID            Original chain ID

9nfn-pdb-bundle1.pdb:
           A                         0
           B                         1
           C                         2
           D                         3
           E                         4
           F                         5
           G                         6
           H                         7
           I                         8
           J                         9
           K                        AA
           L                        AB
           M                        AC
           N                        AD
           O                        AE
           P                        AF
           Q                        AG
           R                        AH
           S                        AI
           T                        AJ
           U                        AK
           V                        AL
           W                        AM
           X                        AN
           Y                        AO
           Z                        AP
           a                        AQ
           b                        AR
           c                        AS
           d                        AT
           e                        AU
           f                        AV
           g                        AW
           h                        AX
           i                        AY
           j                        AZ
           k                        Aa
           l                        Ab
           m                        Ac
           n                        Ad
           o                        Ae
           p                        Af
           q                        Ag
           r                        Ah
           s                        Ai
           t                        Aj
           u                        Ak
           v                        Al
           w                        Am
           x                        An
           y                        Ao
           z                        Ap
           0                        Aq
           1                        Ar
           2                        As
           3                        At
           4                        Au
           5                        Av
           6                        Aw
           7                         f
           8                         g
           9                         h

9nfn-pdb-bundle2.pdb:
           i                         i
           j                         j
           k                         k
           l                         l
           m                         m
           n                         n
           o                         o
           p                         p
           q                         q
           r                         r
           s                         s
           t                         t
           u                         u
           v                         v
           w                         w
           x                         x
           y                         y
           z                         z
