(= b(drain:readline))(for i -80 99(on l b(for j 1 80(pr:if(~< -1(= x(+ i j))len.l)#\ (and(< #\ l.x)(is(* index j)153))#\*l.x))(prn))(prn))
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
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