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  1. or download this
    -l map{$i=$_/20-1;print map{$r=$;=$_/20-2.3;$z=$i;$n=$z*$z,$m=$r*$r,$z
+=2*$r*$z+$i,$r=$m-$n+$;for a..z;$m<4?$":"+"}0..59}0..39
  2. or download this
    -l map{$i=$_/20,print map{$r=$;=$_/20;$z=$i;$n=$z*$z,$m=$r*$r,$z=2*$r*
+$z+$i,$r=$m-$n+$;for a..z;$m<4?$":"+"}-46..13}-20..19