[[$][$1&["*"]?$~1&[" "]?2/]#%"
"]s:                 { stars }
[$@$@|@@&~&]x:        { xor }
[1\[$][1-\2*\]#%]e:   { 2^n }
[e;!1\[$][\$s;!$2*x;!\1-]#%%]t:
4t;!