*[[Problem 1970 - five squares 4>http://herbert.tealang.info/problem.php?id=1970]] [#t0457601] [[prev>Problem 1969]] | [[next>Problem 1971]] #get_img(1970) #br |Author|Limit|h |mas|17| #br **関連 [#p5645dcb] #br **コメント [#w5fa4247] #pcomment(reply)