    New chain ID            Original chain ID

9ngk-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                         f
           s                         g
           t                         h
           u                         i
           v                         j
           w                         k
           x                         l
           y                         m
           z                         n
           0                         o
           1                         p
           2                         q
           3                         r
           4                         s
           5                         t
           6                         u
           7                         v
           8                         w
           9                         x

9ngk-pdb-bundle2.pdb:
           y                         y
           z                         z
