(format t"~{~V@{|~7T|
~}~(~{|~6@A|
~}~)+------+
~D chains~}"(case(mod(unix:getpid)7)(4'(11("y     ""b  yyg")9))(6'(5(r b"g    b"ybgrbg yrrbgg rgbgyy brbgyr gbyyrb)2))(t'(13()19))))