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2014-11-14T16:17:06+02:00
43994 ≤ a+38997 ≤ 44000 

Scadem 38997

43994 ≤ a+38997 ≤ 44000  | -38997

4997 ≤ a ≤ 5003

Daca a apartine R => 

a apartine [4997,5003]

Daca a apartine N =>

a apartine {4997,4998,4999,5000,5001,5002,5003}
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