$><<W%%w'\x06$N\x96\xb4\xde \x06Nl\x96\xde \x066r\xa2\xde \x066r\xde \x06r\xde \x06l\xde \x06\xde \x00l\xd8 \x00\xd8 l'[-eval(gets)].bytes{|i|'\x19\x1a\x1b\x08,'.bytes{|k|W[k+=i]=W[k-i%9*2]=?*}}until puts'-'*17%W='%18s'%$/*15
Note that non-ascii characters in the above source code will be escaped (such as \x9f).