    New chain ID            Original chain ID

9pgi-pdb-bundle1.pdb:
           0                         0
           1                         1
           2                         2
           3                         3
           4                         4
           5                         5
           6                         6
           7                         7
           8                         8
           9                         9
           A                         A
           C                         C
           D                         D
           E                         E
           F                         F
           H                         H
           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
           W                         W
           X                         X
           Y                         Y
           Z                         Z
           z                         z
           G                         G
           V                         V
           b                         b
           d                         d
           e                         e
           g                         g
           h                         h
           i                         i
           j                         j
           k                         k
           l                         l
           m                         m
           n                         n
           o                         o
           q                         q

9pgi-pdb-bundle2.pdb:
           A                         r
           B                         t
           C                         u
           D                         c
           E                         f
           F                         p
           G                         s
           H                        AB
           I                        AC
           J                        AD
           K                        AE
           L                        AF
           M                        AG
           N                        AH
           O                        AJ
           P                        AK
           Q                        AL
           R                        AM
           S                        AN
           T                        AO
           U                        AP
           V                        AR
           W                        AS
           X                        AT
           Y                        AU
           Z                        AV
           a                        AW
           b                        AZ
           c                        A0
           d                        A1
           e                        A3
           f                        Az
           g                        AY
           h                        AA
           i                        AI
           j                        OX
           k                         a
           l                        Ax
           m                        Ay
           n                        Aw
           o                        A4
           p                        AX
           q                        A2
           r                        AQ
           s                         B
