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Durtles

@nmtd

Active 3 days, 6 hours ago

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dandelion (admin) updated a post, 3 years, 1 month ago

@nmtd hello!~
- Durtles replied 3 years, 1 month ago
  
  hi~

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Recent Series

小迪知识录 (3)
Durtles Problems of the Weeks (81)
小辉与小希 (3)
a softer world (1)
小丹故事集 (18)

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dandelion (admin)
Durtles
Silvia
vaisukit
紫叶

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Enclosing the Center
Lucas Sequences
Solid Angles
Integer Coefficients
Divisible Sums

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