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cate nr se pot forma cu cifrele 1 2 3 4 : 6 , 8, 12 , 32 ajutoor 

Răspuns :

12, 21, 13,31,14,41, 16,61, 18,81, 112,121, 132,321, 123,  124,126, 1212, 1232, 213, 214,216,218,2112,2132,  , 312,314,316,318.. si tot asa pana le formezi toate posibilitatile