First numbers that belong to both sets:
101,
121,
131,
141,
151,
161,
171,
181,
191,
202,
212,
232,
242,
252,
262,
272,
282,
292,
303,
313,
323,
343,
353,
363,
373,
383,
393,
404,
414,
424,
434,
454,
464,
474,
484,
494,
505,
515,
525,
535,
545,
565,
575,
585,
595,
606,
616,
626,
636,
646,
656,
676,
686,
696,
707,
717,
727,
737,
747,
757,
767,
787,
797,
808,
818,
828,
838,
848,
858,
868,
878,
898,
909,
919,
929,
939,
949,
959,
969,
979,
989,
10101,
12121,
13131,
14141,
15151,
16161,
17171,
18181,
19191,
20202,
21212,
23232,
24242,
25252,
26262,
27272,
28282,
29292,
30303,
31313,
32323,
34343,
35353,
36363,
37373,
38383,
39393,
40404,
41414,
42424,
43434,
45454,
46464,
47474,
48484,
49494,
50505,
51515,
52525,
53535,
54545,
56565,
57575,
58585,
59595,
60606,
61616,
62626,
63636,
64646,
65656,
67676,
68686,
69696,
70707,
71717,
72727,
73737,
74747,
75757,
76767,
78787,
79797,
80808,
81818,
82828,
83838,
84848,
85858,
86868,
87878,
89898,
90909,
91919,
92929,
93939,
94949,
95959,
96969,
97979,
98989,
1010101,
1212121,
1313131,
1414141,
1515151,
1616161,
1717171,
1818181,
1919191,
2020202,
2121212,
2323232,
2424242,
2525252,
2626262,
2727272,
2828282,
2929292,
3030303,
3131313,
3232323,
3434343,
3535353,
3636363,
3737373,
3838383,
3939393,
4040404,
4141414,
4242424,
4343434,
4545454,
4646464,
4747474,
4848484,
4949494,
5050505,
5151515,
5252525,
5353535,
5454545,
5656565,
5757575,
5858585,
5959595,
6060606,
6161616,
6262626,
6363636,
6464646,
6565656,
6767676,
6868686,
6969696,
7070707,
7171717,
7272727,
7373737,
7474747,
7575757,
7676767,
7878787,
7979797,
8080808,
8181818,
8282828,
8383838,
8484848,
8585858,
8686868,
8787878,
8989898,
9090909,
9191919,
9292929,
9393939,
9494949,
9595959,
9696969,
9797979,
9898989,
101010101,
121212121,
131313131,
141414141,
151515151,
161616161,
171717171,
181818181,
191919191,
202020202,
212121212,
232323232,
242424242,
252525252,
262626262,
272727272,
282828282,
292929292,
303030303,
313131313,
323232323,
343434343,
353535353,
363636363,
373737373,
383838383,
393939393,
404040404,
414141414,
424242424,
434343434,
454545454,
464646464,
474747474,
484848484,
494949494,
505050505.
Some larger examples :
787878787878787,
797979797979797,
808080808080808,
818181818181818,
828282828282828,
838383838383838,
848484848484848,
858585858585858,
868686868686868,
878787878787878,
898989898989898,
909090909090909,
919191919191919,
929292929292929,
939393939393939,
949494949494949,
959595959595959,
969696969696969,
979797979797979,
989898989898989.