solve of Egashra problem on delf
solve of Egashra problem on delf

ShellShoccar-jpn/Open-usp-Tukubai,h8gi/Open-usp-Tukubai,ryuichiueda/Open-usp-Tukubai,h8gi/Open-usp-Tukubai,h8gi/Open-usp-Tukubai,ShellShoccar-jpn/Open-usp-Tukubai,ryuichiueda/Open-usp-Tukubai,ryuichiueda/Open-usp-Tukubai,ryuichiueda/Open-usp-Tukubai,ShellShoccar-jpn/Open-usp-Tukubai,ShellShoccar-jpn/Open-usp-Tukubai,h8gi/Open-usp-Tukubai