main.rb

eval$x=%q(eval(%w(s="]k<<k7@k9
9k@,7&]-7k.@61y?c<c@9k.?isu:,e
y<?2k_i]61   o@3i>k@_]9_g36o1@
i4k?w/r?1o     ?i=i?yoy65kok95
qw6?ci_:<ye     g'=ok?;g'n/g?o
i2?.(]{8{)-      u8c@4>]u8c-u@
gq7?@4]0;g?      ;|g|;]*qkbk0e
g,_@eqqeqqg      @>'] a<<0e4e5
oi{25>|>?@        c8   &7*3986
@a;;0+>*@2        _i   m{@{+_(
+q{>@{my_         (     im1:{_
><@2i=:i.         _     :]ii]i
:)c)8]_a      <a        _&]{5-
98@,_33       cf         p/oec
";i=38;       "?         {a?o:
]cakaia      gea=        krra@
y=ioa]      >>@]m  m    ??ae__
i@ggee     ooaa@@ ]]    ".scan
(/../)    {s=s.gsub(    i.chr,
$&);i+    =1};i=59;h   ={};dec
lare{s    .bytes.map   {|c|("%
07b"%(    c-93)+?0+1  0.chr).t
r(?0,32   .chr)}.ea  ch_slice(
8){|l|ev   al"s#{c =31+i+=1}('
#{l*""}')"  ;h[c.chr.to_sym]="
s#{c}";i%=95 }};scene(?q){scre
en("eval$x=%q(#$x)".lines.map{
|s|?x+s.chomp+?x}*"",h)})*""))

I posted step-by-step tutorial to execute this program:
https://news.ycombinator.com/item?id=10528603