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