was the temperature c (calc) value of patient 18159 last measured on the first icu visit greater than the value first measured on the first icu visit?
select ( select chartevents.valuenum from chartevents where chartevents.icustay_id in ( select icustays.icustay_id from icustays where icustays.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 18159 ) and icustays.outtime is not null order by icustays.intime asc limit 1 ) and chartevents.itemid in ( select d_items.itemid from d_items where d_items.label = 'temperature c (calc)' and d_items.linksto = 'chartevents' ) order by chartevents.charttime desc limit 1 ) > ( select chartevents.valuenum from chartevents where chartevents.icustay_id in ( select icustays.icustay_id from icustays where icustays.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 18159 ) and icustays.outtime is not null order by icustays.intime asc limit 1 ) and chartevents.itemid in ( select d_items.itemid from d_items where d_items.label = 'temperature c (calc)' and d_items.linksto = 'chartevents' ) order by chartevents.charttime asc limit 1 )