CREATE TABLE table_204_1 (id DECIMAL, "season" TEXT, "north" TEXT, "south" TEXT, "east" TEXT, "west" TEXT)

who won the season in the north before ec bayreuth did in 2002-03 ?
SELECT "north" FROM table_204_1 WHERE id = (SELECT id FROM table_204_1 WHERE "north" = 'ec bayreuth') - 1
SELECT "north" FROM "table_204_1" WHERE "id" = (SELECT "id" FROM "table_204_1" WHERE "north" = 'ec bayreuth') - 1