CREATE TABLE table_24512 ("Regional" TEXT, "Champions" TEXT, "Runners-up" TEXT, "Third place" TEXT, "Fourth place" TEXT)

who got the first position when Ehime Shimanami got the third position?
SELECT "Champions" FROM table_24512 WHERE "Third place" = 'Ehime Shimanami'
SELECT "Champions" FROM "table_24512" WHERE "Third place" = 'Ehime Shimanami'