6.a)37848,37850,37852,37854,37856,37858,37860,37862,37864
b).156003,156005,156007,156009,156011,156013,156015,156017,156019,156021,156023,156025,156027,156029,156031,156033
c).196993,196994,196995,196996,196997,196998,196999,197000,197001,197002,197003
d).18096,18097,18098,18099,18100,18101,18102,18103,18104,18105,18106,18107,18108,18109
7. 40,80,90,760,1420,123680
