CREATE TABLE table_39405 ("Round" FLOAT, "Pick #" FLOAT, "Overall" FLOAT, "Name" TEXT, "Position" TEXT, "College" TEXT)

Which Pick # is the highest one that has an Overall larger than 21, and a College of north carolina, and a Round smaller than 3?
SELECT MAX("Pick #") FROM table_39405 WHERE "Overall" > '21' AND "College" = 'north carolina' AND "Round" < '3'
SELECT MAX("Pick #") FROM "table_39405" WHERE "College" = 'north carolina' AND "Overall" > '21' AND "Round" < '3'