when was patient 4368's last intake on 05/24/2105?
select inputevents_cv.charttime 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 = 4368 ) ) and strftime('%y-%m-%d',inputevents_cv.charttime) = '2105-05-24' order by inputevents_cv.charttime desc limit 1