Plot Circle by

var i,n:comp;s,t:string;begin\x0d
read(n);i:=n;repeat\x0d
s:=s+'*****';str(s:trunc(sqrt(n*n-i*i)),t);writeln(t:n,'*',t:-n);dec(i)until 1=0end.

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

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