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