CREATE TABLE table_23592 ("Season" TEXT, "Bayernliga" TEXT, "Landesliga S\\u00fcd" TEXT, "Landesliga Mitte" TEXT, "Landesliga Nord" TEXT)

Name the landesliga mitte for fc gundelfingen and vfl frohnlach
SELECT "Landesliga Mitte" FROM table_23592 WHERE "Landesliga S\u00fcd" = 'FC Gundelfingen' AND "Landesliga Nord" = 'VfL Frohnlach'
SELECT "Landesliga Mitte" FROM "table_23592" WHERE "Landesliga Nord" = 'VfL Frohnlach' AND "Landesliga S\u00fcd" = 'FC Gundelfingen'