#author("2021-07-23T11:17:24+09:00","default:kuzan","kuzan") #ref(https://pbs.twimg.com/media/E68fmEvVUAE97sw?format=jpg&name=4096x4096) #author("2021-07-23T11:44:14+09:00","default:kuzan","kuzan") https://ci.nii.ac.jp/ncid/BA77417198 #tweet_inc(https://twitter.com/okjma/status/1418400960938844162)