Răspuns:
a.279,278,277,276,275,274,273,272,271,270,269,268,267,266,265,264,263,262,261
b.499,498,497,496,495,494,493,492,491,490
c.900,899,898,897,896,895,894,893,892,891,890,889,888,887,886,885,884,883,882,881,880,879,878,877,876,875,874,873,872,871,870,869,868,867,866,865,864,863,862,861,860,859,858,857,856,855,854,853,852,851,
Explicație pas cu pas:
SPER CA TE-AM AJUTAT!!ASTEPT COROANA DACA SE POATE