CREATE TABLE table_203_671 (id DECIMAL, "name" TEXT, "rank" TEXT, "age" DECIMAL, "years until mandatory retirement" TEXT, "appointed by" TEXT, "year appointed" DECIMAL)

what 's the difference in age between luis estrella martinez and edgardo rivera garcia ?
SELECT ABS((SELECT "age" FROM table_203_671 WHERE "name" = 'luis estrella martinez') - (SELECT "age" FROM table_203_671 WHERE "name" = 'edgardo rivera garcia'))
SELECT ABS((SELECT "age" FROM "table_203_671" WHERE "name" = 'luis estrella martinez') - (SELECT "age" FROM "table_203_671" WHERE "name" = 'edgardo rivera garcia'))