# work out which module to use
my $csv_module;
if(eval{require Text::CSV_XS}){
  $csv_module = 'Text::CSV_XS';
}
else{
  $csv_module = 'Text::CSV';
}
eval("use $csv_module;");

##</code><code>##

map{$a=1-$_/10;map{$d=$a;$e=$b=$_/20-2;map{($d,$e)=(2*$d*$e+$a,$e**2
-$d**2+$b);$c=$d**2+$e**2>4?$d=8:_}1..50;print$c}0..59;print$/}0..20