what was the total amount of the input patient 14621 had received on 06/22/2105?
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 = 14621 ) ) and strftime('%y-%m-%d',inputevents_cv.charttime) = '2105-06-22'