Răspunsuri

2014-09-29T18:20:19+03:00
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