#1 https://www.nicovideo.jp/watch/sm39627782#2https://www.nicovideo.jp/watch/sm39633276#3https://www.nicovideo.jp/watch/sm39634894#5https://www.nicovideo.jp/watch/sm39648137#6https://www.nicovideo.jp/watch/sm39652554#7https://www.nicovideo.jp/watch/sm39658227#8https://www.nicovideo.jp/watch/sm39662315#9https://www.nicovideo.jp/watch/sm39666981#10https://www.nicovideo.jp/watch/sm39674987 左右対称シンメトリー
http://www.nicovideo.jp/watch/sm39642841