    New chain ID            Original chain ID

9uwh-pdb-bundle1.pdb:
           A                         A
           B                         B
           C                         D
           D                         E
           E                         F
           F                         H
           G                         I
           H                         J
           I                         K
           J                         L
           K                         M
           L                         N
           M                         O
           N                         P
           O                         Q
           P                         R
           Q                         S
           R                         T
           S                         U
           T                         V
           U                         W
           V                         X
           W                         Y
           X                         Z
           Y                        AA
           Z                        AB
           a                        AC
           b                        AD
           c                        AE
           d                        AF
           e                        AG
           f                        AH

9uwh-pdb-bundle2.pdb:
           A                        AI
           B                        AJ
           C                        AK
           D                        AL
           E                        AM
           F                        AN
           G                        AO
           H                        AP
           I                        AQ
           J                        AR
           K                        AS
           L                        AT
           M                        AU
           N                        AV
           O                        AW
           P                        AX
           Q                        AY
           R                        AZ
           S                        A0
           T                        A1
           U                        A2
           V                        A3
           W                        A4
           X                        Ax
           Y                        Az
           Z                         0
           a                         1
           b                         2
           c                         3
           d                         4
           e                         5
           f                         6
           g                         7
           h                         8
           i                         9
           j                         a
           k                         b
           l                         c
           m                         d
           n                         e
           o                         f
           p                         g
           q                         h
           r                         i
           s                         j
           t                         k
           u                         l
           v                         m
           w                         o
           x                         p
           y                         q
           z                         r
           0                         s
           1                         t
