(the main points)df-adf-adf-adf-aaa-gab-gac-gad-gae-hah-cai-caj-cak-cal-cam-can-cao-cap-caq-car-cas-cbp-sbq-gbr-gbs-gdoat-gau-gdo-Z-Z-Z-Z-Z-u,ap-gnG-cnH-cnI-cnJ-cnK-cnL-cnM-cnN-cnO-cnP-dlr-cls-clt-clu-clv-clw-clx-cly-clz-clA-clB-clC-clD-clE-glF-clG-clH-clI-clJ-clK-clL-clM-clN-clO-clP-clQ-cap-Z-Z-Z-Z-Z-v,ak-gfa-gfc-gfd-gfe-gff-cfg-daN-caO-caP-caQ-caR-caS-caT-caU-caV-aaW-aaX-gaY-caZ-sfa-gfb-gfd-gfe-gff-cfg-cak-Z-Z-Z-Z-Z-v,if-gnG-cnH-cnI-cnJ-cnK-cnL-cnM-cnN-cnO-cnP-dlr-cls-clt-clu-coc-clw-clx-cly-clz-clA-clB-clC-clD-clE-glF-clG-clH-clI-clJ-clK-clL-clM-clN-clO-clP-clQ-cap-Z-Z-Z-Z-Z-v