    New chain ID            Original chain ID

9vpb-pdb-bundle1.pdb:
           A                         8
           B                         A
           C                        A8
           D                        AA
           E                        AB
           F                        AC
           G                        AD
           H                        AE
           I                        AF
           J                        AG
           K                        AH
           L                        AI
           M                        AJ
           N                        AK
           O                        AL
           P                        AM
           Q                        AN
           R                        AO
           S                        AP
           T                        AQ
           U                        AR
           V                        AS
           W                        Aa
           X                        Ab
           Y                        Ad
           Z                        Ae
           a                        Af
           b                        Ag
           c                        Ah
           d                         B
           e                         C
           f                         D
           g                         E
           h                         F
           i                         G
           j                         H
           k                         I
           l                         J
           m                         K
           n                         L
           o                         M
           p                         N
           q                         O
           r                         P
           s                         Q
           t                         R
           u                         S
           v                         a
           w                         b
           x                         d
           y                         e
           z                         f
           0                         g
           1                         h
