1 'a' in d: True

     2 d['a']: va

     3 'b' in d: True

     4 d['b']: vb

     5 'c' in d: True

     6 d['c']: vc

     7 'd' in d: True

     8 d['d']: vd

     9 'a' in d: False

    10 'b' in d: True

    11 d['b']: vb

    12 'c' in d: True

    13 d['c']: vc

    14 'd' in d: True

    15 d['d']: vd

    16 'e' in d: True

    17 d['e']: ve

    18 'b' in d: True

    19 d['b']: vb2

    20 'c' in d: True

    21 d['c']: vc2

    22 'd' in d: True

    23 d['d']: vd

    24 'e' in d: False

    25 'f' in d: True

    26 d['f']: vf

    27 'b' in d: False

    28 'c' in d: False

    29 'd' in d: False

    30 'e' in d: False

    31 'f' in d: False

    32 'a' in d: True

    33 d['a']: 1

    34 'b' in d: True

    35 d['b']: 2

    36 

    37 All of these should be present:

    38 'a' in dc: True

    39 dc['a']: va3

    40 'b' in dc: True

    41 dc['b']: vb3

    42 'c' in dc: True

    43 dc['c']: vc3

    44 'd' in dc: True

    45 dc['d']: vd3

    46 

    47 All of these except 'a' should be present:

    48 'a' in dc: False

    49 'b' in dc: True

    50 dc['b']: vb3

    51 'c' in dc: True

    52 dc['c']: vc3

    53 'd' in dc: True

    54 dc['d']: vd3

    55 'e' in dc: True

    56 dc['e']: ve3

    57 

    58 These should be in reverse alphabetical order and read 'v?3':

    59 d['d']: vd3

    60 d['c']: vc3

    61 d['b']: vb3

    62 d['a']: va3