글
1. Primary
2. Secondary
3. Tertiary
4. Quaternary
5. Quinary
6. senary
7. septenary
8. octonary
9. nonary
10. denary
....
12. duodenary
.......
20. vigenary
1. Primary
2. Secondary
3. Tertiary
4. Quaternary
5. Quinary
6. senary
7. septenary
8. octonary
9. nonary
10. denary
....
12. duodenary
.......
20. vigenary
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