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2014-06-11T17:29:22+03:00
4+x+6+7+y+2=23 19+x+y=23 x+y=4 (x,y)apartin multimii {(0,4);(1,3);(2,2);(3,1);(4,0)} Numerele sunt : 406742 416732 426722 436712 446702
26 4 26