Real name: Brak
Steam ID: 76561198360474051
563911475
AndyZarks
captainRetia
DeCodeDesTiny
Diego
GoLight
IM&SD Tech Type AS
lontano
Sss
乔安
商心慈
泡馍
证明当X>0时，有不等式ln(1+1/X)>1/(1+X)
马得一
