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cate nr de forma abcd au toate cifrele impare distincte?

Răspuns :

1357,3579,3571,1359,7539,7359,1573,1537,1375,1395,3597,3759,3795,3975,3957,3951,3915,3195,3159,9753,9735,9537,9573,9173,9137

Total:25 nr.