First numbers that belong to both sets:
1,
2,
3,
5,
7,
11,
33,
77,
101,
131,
141,
151,
161,
181,
191,
303,
313,
323,
353,
373,
383,
393,
515,
535,
545,
565,
595,
707,
717,
727,
757,
767,
787,
797,
919,
929,
949,
959,
989,
1001,
1111,
1441,
1551,
1661,
1991,
3113,
3223,
3333,
3443,
3553,
7117,
7447,
7667,
7777,
7887,
9119,
9229,
9669,
9889,
10001,
10301,
10401,
10501,
10601,
10801,
11111,
11311,
11411,
11611,
11911,
12021,
12121,
12421,
12521,
12721,
12821,
13031,
13231,
13331,
13631,
13831,
13931,
14041,
14141,
14241,
14341,
14441,
14741,
14941,
15051,
15151,
15251,
15451,
15551,
15751,
16061,
16161,
16261,
16361,
16561,
16661,
16861,
17071,
17171,
17371,
17471,
17671,
17771,
17971,
18181,
18281,
18381,
18481,
18581,
18781,
18881,
19291,
19391,
19591,
19891,
19991,
30103,
30203,
30403,
30503,
30703,
30803,
30903,
31013,
31313,
31513,
31613,
31813,
31913,
32023,
32123,
32223,
32323,
32423,
32623,
32723,
32923,
33133,
33233,
33433,
33533,
33733,
33833,
34043,
34343,
34543,
34843,
34943,
35053,
35153,
35353,
35653,
35753,
35953,
36263,
36563,
36763,
36863,
37073,
37273,
37473,
37573,
37673,
37973,
38083,
38183,
38383,
38483,
38683,
38783,
38983,
39193,
39293,
39493,
39693,
39793,
39893,
39993,
50005,
50205,
50405,
51115,
51215,
51515,
51715,
53035,
53135,
53335,
53435,
53935,
54345,
54445,
54545,
54745,
54845,
55155,
55255,
56065,
56165,
56365,
56665,
56765,
56965,
58085,
58285,
58385,
58585,
58885,
59095,
59195,
59395,
59495,
59595,
59695,
59795,
70007,
70107,
70207,
70307,
70507,
70607,
70807,
70907,
71017,
71317,
71417,
71617,
71717,
71917,
72127,
72227,
72527,
72727,
72827,
73037,
73237,
73337,
73537,
73637,
73837,
73937,
74047,
74147,
74247,
74447,
74647,
74747,
74947,
75457,
75557,
75757,
75857,
76067,
76267,
76367,
76467,
76567,
76667,
76767,
76867,
77177,
77377,
77477,
77677,
77777,
77977,
78187,
78387,
78487,
78587,
78787,
78887,
78987,
79097,
79197.
Some larger examples :
9970799,
9971799,
9972799,
9973799,
9975799,
9976799,
9978799,
9979799,
9980899,
9981899,
9983899,
9986899,
9987899,
9988899,
9989899,
9991999,
9992999,
9994999,
9995999,
9998999.