Hello, world
12
0
dlrow ,olleH

el
2 : ld
0 : 
H



, world
'e'
abc
a
Just ('a', "bc")
Nothing
pack

['u', 'n', 'p', 'a', 'c', 'k']
[]
concatenate

[False, True, False, False, False, False, False]
[True, False, False, False, False, False, False]
[False, False, False, True, False, False, False]
[False, False, False, False, True, True, False]
[False, False, False, False, False, True, False]
[False, False, False, False, False, True, True]
['a', 'A', '~', '0', ' ', '\n', '\159']
[97, 65, 126, 48, 32, 10, 159]
['i', 't', 'e', 'r', 'a', 't', 'o', 'r', ' ', 'u', 'n', 'p', 'a', 'c', 'k']
"terator tail"
True
False
True
False