Ú°½‘O”¼3F-35.1(¸×½•½‹Ï36.9)
Ú°½Œã”¼3F-35.8(¸×½•½‹Ï35.2)
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2º:9(2,4,7,10)(5,8,12)(6,11)14(15,17)-3,13,16-18-1
3º:9,10(4,7)8(2,12)(5,11,14)(6,15,17)(13,16)3-18=1
4º:9(10,7)(4,8)(2,12)(5,11,14)17(6,15)13,16,3-18-1
1’…”n / 2’…”n / 3’…”n