SELECT *
  FROM (SELECT array_to_string(array_agg(CASE
                                           WHEN (POWER((xx.x - 25), 2) / 130 +
                                                POWER((yy.y - 25), 2) / 130) = 1 THEN
                                            '$'
                                           WHEN (SQRT(POWER(xx.x - 20, 2) + POWER(yy.y - 20, 2))) < 2 THEN
                                            '#'
                                           WHEN (SQRT(POWER(xx.x - 20, 2) + POWER(yy.y - 30, 2))) < 2 THEN
                                            '#'
                                           WHEN (SQRT(POWER(xx.x - 29, 2) + POWER(yy.y - 25, 2))) < 4 THEN
                                            '#'
                                           WHEN (POWER((xx.x - 10), 2) / 40 +
                                                POWER((yy.y - 10), 2) / 40) = 1 THEN
                                            '$'
                                           WHEN (POWER((xx.x - 10), 2) / 40 +
                                                POWER((yy.y - 40), 2) / 40 = 1) THEN
                                            '$'
                                           ELSE
                                            ' '
                                         END),
                               ' ') AS cartoon
          FROM (SELECT generate_series(1, 40) AS x) AS xx,
               (SELECT generate_series(1, 50) AS y) AS yy
         GROUP BY xx.x
         ORDER BY xx.x) AS co_ord;