evolutionformerly posted as h.hatena.ne.jp/screwflysolver/225694429805562806

exactlyformerly posted as h.hatena.ne.jp/screwflysolver/243585426298704220

superbformerly posted as h.hatena.ne.jp/screwflysolver/225870028525538401

returnformerly posted as h.hatena.ne.jp/screwflysolver/225694084243097364

purpleformerly posted as h.hatena.ne.jp/screwflysolver/225694062644393018