First numbers that belong to both sets:
3,
5,
6,
9,
33,
66,
77,
99,
101,
111,
141,
202,
212,
222,
232,
252,
272,
282,
303,
323,
343,
353,
363,
373,
383,
393,
404,
414,
424,
444,
464,
474,
525,
585,
606,
616,
636,
646,
676,
686,
717,
777,
797,
808,
828,
848,
858,
888,
898,
909,
969,
989,
999,
1111,
1331,
1551,
1661,
1771,
1991,
2112,
2222,
2662,
2772,
2992,
3443,
3663,
3883,
3993,
4224,
4444,
4554,
4774,
5115,
5225,
5335,
5445,
5555,
5775,
5885,
6116,
6336,
6886,
7007,
7227,
7447,
7667,
7887,
7997,
8118,
8338,
8448,
8888,
8998,
9009,
9339,
9559,
9889,
9999,
10001,
10701,
10801,
11011,
11311,
11511,
11911,
12021,
12321,
12821,
12921,
13131,
13231,
13331,
13631,
13731,
14141,
14241,
14541,
14741,
14841,
15151,
15351,
15651,
15951,
16161,
16861,
16961,
17071,
17171,
17471,
17571,
17671,
17771,
18081,
18181,
18281,
18581,
18681,
18781,
18881,
18981,
19191,
19491,
19991,
20002,
20702,
21212,
21512,
21712,
22022,
22122,
22322,
22622,
22722,
23132,
23232,
23532,
23632,
23732,
23932,
24042,
24542,
24642,
24742,
24942,
25052,
25152,
25252,
25452,
25652,
25752,
25952,
26262,
26362,
26462,
26562,
26662,
26762,
27072,
27172,
27272,
27672,
28182,
28282,
28482,
28582,
28782,
28982,
29292,
29492,
29592,
29792,
30103,
30203,
30503,
30603,
30803,
30903,
31013,
31113,
31313,
31413,
31613,
31713,
31813,
32023,
32123,
32523,
32723,
32823,
32923,
33033,
33233,
33333,
33433,
33633,
33933,
34543,
34643,
34743,
34843,
35053,
35153,
35253,
35353,
35753,
35853,
36063,
36463,
36663,
36763,
36963,
37073,
37373,
37473,
37773,
38183,
38283,
38483,
38583,
38783,
38883,
39093,
39293,
39393,
39593,
39693,
39893,
39993,
40004,
40304,
40504,
40704,
41014,
41114,
41314,
41514,
41714,
41814,
42124,
42424,
42724,
43034,
43434,
43634,
43934,
44044,
44244,
44344,
44644,
44744,
44944,
45154,
45454,
45654,
46264,
46364,
46464,
46964,
47074,
47274.
Some larger examples :
999626999,
999646999,
999676999,
999686999,
999717999,
999727999,
999737999,
999747999,
999757999,
999777999,
999838999,
999868999,
999878999,
999888999,
999929999,
999939999,
999959999,
999969999,
999979999,
1000000001.