*Problem 1536 - Contest 7-B p4 four squares [#h1658e8c] [[prev>Problem 1535]] | [[next>Problem 1537]] #get_img(1536) #br |Author|Limit|h |Ktya|34| #br **関連 [#ecff9740] #br **コメント [#h5d4231b] #pcomment(reply)