Ú°½‘O”¼3F-37.5(¸×½•½‹Ï37.7)
Ú°½Œã”¼3F-39.3(¸×½•½‹Ï39.5)
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1º:2(7,13,14)3-15,4(8,10)12,6(5,1)11-9
2º:(*2,7,13)14,3-15=(4,10)12,8,6,1(5,11)9
3º:(*2,7,13,14)(3,15)-(1,12)(4,10)-(11,6)-9-8=5
4º:(*2,14)(13,15)(3,7)(1,12)(4,10,11)-6-9=8=5
1’…”n / 2’…”n / 3’…”n