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scrie succesorul apoi predecesorul fiecarui numar:6000,4900,5010,1890,8800,1000,3003.

Răspuns :

5999,6000,6001
4899,4900,4901
5009,5010,5011
1889,1890,1891
8799,8800,8801
999,1000,1001
3002,3003,3004
5999,6000,6001
4899,4900,4901
5009,5010,5011
1889,1890,1891
8799,8800,8801
999,1000,1001
3002,3003,3004