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$aoa[$x][$y] = 'x' if ( (($x-$circle_x)**2 + ($y-$circle_y)**2 <= ($ci
+rcle_radius**2) )
                             # and $x >=0 and $y >=0 )                
+            
                               and $x >=0 and $y >=0 and $x <= $max  )