Răspuns:
8) a)4265,4562,6245,6254,6425,6452,6542
b) 7963,7936,7639,7369,6936,6739,6379
9)1.032,1772,2014,2451,7721,9736
10)7783,6953,5493,4435,4354,3945 2041
