First numbers that belong to both sets:
39,
49,
111,
133,
203,
209,
299,
309,
327,
333,
399,
511,
515,
533,
611,
633,
711,
721,
763,
777,
799,
833,
899,
927,
981,
999,
1003,
1011,
1027,
1037,
1055,
1099,
1111,
1133,
1227,
1299,
1333,
1421,
1463,
1477,
1533,
1555,
1633,
1751,
1799,
1899,
1957,
2033,
2127,
2133,
2163,
2177,
2199,
2233,
2369,
2433,
2533,
2555,
2575,
2599,
2781,
2863,
2899,
2987,
3027,
3033,
3055,
3081,
3099,
3133,
3193,
3199,
3233,
3451,
3563,
3577,
3599,
3681,
3799,
3857,
3899,
3999,
4009,
4037,
4055,
4199,
4333,
4399,
4499,
4555,
4599,
4669,
4699,
4963,
4977,
5027,
5111,
5185,
5299,
5555,
5599,
5663,
5699,
5799,
5887,
5899,
5999,
6293,
6377,
6381,
6399,
6499,
6799,
7009,
7021,
7037,
7063,
7077,
7099,
7111,
7199,
7259,
7299,
7399,
7777,
7799,
7999,
8027,
8299,
8333,
8399,
8499,
8899,
9037,
9081,
9099,
9111,
9299,
9399,
9499,
9599,
9799,
9899,
10003,
10015,
10027,
10033,
10135,
10555,
10999,
11033,
11037,
11099,
11111,
11297,
11333,
11407,
11999,
12027,
12081,
12333,
12999,
13039,
13111,
13117,
13333,
13351,
13481,
14021,
14027,
14111,
14189,
14333,
14777,
14999,
15037,
15185,
16027,
16037,
16999,
17037,
17051,
17111,
17153,
17459,
17629,
17999,
18037,
18111,
19027,
19057,
19111,
19171,
19513,
19703,
19999,
20003,
20009,
20027,
20033,
20037,
20099,
20111,
20135,
20185,
20303,
20555,
20909,
20999,
21027,
21037,
21081,
21189,
21333,
21999,
22033,
22297,
22333,
22999,
23069,
23111,
23207,
23621,
23851,
23999,
24037,
25027,
25135,
25333,
25925,
26027,
26039,
26333,
27037,
27111,
27243,
27333,
27729,
28037,
28063,
28189,
28259,
28333,
28777,
28999,
29037,
29087,
29111,
29261,
29783,
29999,
30009,
30027,
30037,
30081,
30099,
30101,
30185,
30297,
30333,
30909,
30999,
31037,
31093,
31111,
31279,
31837,
31999,
32111,
32333,
32727,
33407,
34037,
34051,
34111,
34333,
34459,
34999,
35045,
35063.
Some larger examples :
9956567,
9959999,
9961111,
9963333,
9968383,
9971111,
9972991,
9973333,
9978973,
9979999,
9981497,
9983333,
9984491,
9985489,
9989999,
9991111,
9992997,
9993737,
9998181,
9998991.