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1º:6(14,15)(5,16)(10,11)(3,13,9)(2,4)7-8,12,1
2º:6(14,15)(5,16)(10,11)3(13,9)2(4,7)-8(1,12)
3º:(*6,14,15)11(5,16)(10,9)(3,13,7,12)(4,8,1)=2
4º:(*6,14,15,11)(5,10,9)16-(13,7,12,1)4(3,8)=2
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