expand text by murky-satyr

File standardInput readLines do(for(i,0,n:=at(0)asNumber-1,$ :=list join
last foreach(b,for(j,0,n,$append(if(i%n*(j%n)>0,32,b))))
$println))

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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