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Amazonのアソシエイトとして、ksnctfは適格販売により収入を得ています。
1: Test Problem
2: Easy Cipher
4: Villager A
5: Onion
6: Login
7: Programming
10: #!
11: Riddle
13: Proverb
14: John
15: Jewel
16: Math I
17: Math II
18: USB flash drive
19: ZIP de kure
20: G00913
21: Perfect Cipher
22: Square Cipher
23: Villager B
24: Rights out
25: Reserved
26: Sherlock Holmes
27: Lives out
28: Lo-Tech Cipher
29: Double Blind
31: KanGacha
32: Simple Auth
33: HTTPS is secure.
34: Are you human?
35: Simple Auth II
36: Are you ESPer?
41: Private BBS