Ú°½‘O”¼3F-35.3(¸×½•½‹Ï37)
Ú°½Œã”¼3F-34.7(¸×½•½‹Ï35.1)
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2º:1(2,4)10(12,18)(5,13)(8,11,14,16)(3,17)15-9,7-6
3º:1(4,18)2,10(5,12)(13,16)(3,8)(11,14,15)-(7,17)9=6
4º:1-(4,18)(2,10)(5,12)(3,13)16(8,15)(11,14)(7,17)-9=6
1’…”n / 2’…”n / 3’…”n