module A where
b = 0
b = 1

b = 0o00
b = 0O77

b = 0x00
b = 0XFF

b = 0.00
b = 0.99

b = 0.00e01
b = 0.99E01
b = 0.00e+01
b = 0.99E-01
b = 0.00e-01
b = 0.99E+01

b = 00e01
b = 99E01
b = 00e+01
b = 99E-01
b = 00e-01
b = 99E+01

b = undefined
ba0 = undefined
bA0 = undefined
b0 = undefined
b9 = undefined
bA = undefined
bZ' = undefined

b = True
b = False

b = 'a'
b = 'b'

b = '0'
b = '1'

b = '_'

b = 'A'
b = 'B'

b = ','

b = '!'
b = '#'
b = '$'
b = '%'
b = '&'
b = '⋆'
b = '+'
b = '.'
b = '/'
b = '<'
b = '='
b = '>'
b = '?'
b = '^'
b = '|'
b = '-'
b = '~'
b = ':'
b = '"'

b = [ "\NUL"
    , "\SOH"
    , "\STX"
    , "\ETX"
    , "\EOT"
    , "\ENQ"
    , "\ACK"
    , "\BEL"
    , "\BS"
    , "\HT"
    , "\LF"
    , "\VT"
    , "\FF"
    , "\CR"
    , "\SO"
    , "\SI"
    , "\DLE"
    , "\DC1"
    , "\DC2"
    , "\DC3"
    , "\DC4"
    , "\NAK"
    , "\SYN"
    , "\ETB"
    , "\CAN"
    , "\EM"
    , "\SUB"
    , "\ESC"
    , "\FS"
    , "\GS"
    , "\RS"
    , "\US"
    , "\SP"
    , "\DEL"
    ]