History of question #270748

When Who Action New State
2015-08-24 Jiahao liang Comment Open
2015-08-24 Michal Rostecki Answer Answered
2015-08-24 Jiahao liang Reopen Open
2015-08-25 Evgeny Kozhemyakin Answer Answered
2015-08-25 Jiahao liang Comment Answered