instruction: calculate the difference between the total input and the output of patient 16088 on the last icu visit.
response: SELECT (SELECT SUM(inputevents_cv.amount) FROM inputevents_cv WHERE inputevents_cv.icustay_id IN (SELECT icustays.icustay_id FROM icustays WHERE icustays.hadm_id IN (SELECT admissions.hadm_id FROM admissions WHERE admissions.subject_id = 16088) AND NOT icustays.outtime IS NULL ORDER BY icustays.intime DESC LIMIT 1)) - (SELECT SUM(outputevents.value) FROM outputevents WHERE outputevents.icustay_id IN (SELECT icustays.icustay_id FROM icustays WHERE icustays.hadm_id IN (SELECT admissions.hadm_id FROM admissions WHERE admissions.subject_id = 16088) AND NOT icustays.outtime IS NULL ORDER BY icustays.intime DESC LIMIT 1))