CREATE TABLE table_203_591 (id DECIMAL, "high school" TEXT, "join\ year" TEXT, "from" TEXT, "left" TEXT, "league left to" TEXT)

which high school left the same year as fenton high school ?
SELECT "high school" FROM table_203_591 WHERE "high school" <> 'fenton' AND "left" = (SELECT "left" FROM table_203_591 WHERE "high school" = 'fenton')
SELECT "high school" FROM "table_203_591" WHERE "high school" <> 'fenton' AND "left" = (SELECT "left" FROM "table_203_591" WHERE "high school" = 'fenton')