First numbers that belong to both sets:
515,
545,
818,
10101,
20202,
30303,
40404,
50505,
51515,
54545,
60606,
70707,
80808,
81818,
90909,
101010,
121212,
131313,
141414,
151515,
161616,
171717,
181818,
191919,
202020,
212121,
232323,
242424,
252525,
262626,
272727,
282828,
292929,
303030,
313131,
323232,
343434,
353535,
363636,
373737,
383838,
393939,
404040,
414141,
424242,
434343,
454545,
464646,
474747,
484848,
494949,
505050,
515151,
525252,
535353,
545454,
565656,
575757,
585858,
595959,
606060,
616161,
626262,
636363,
646464,
656565,
676767,
686868,
696969,
707070,
717171,
727272,
737373,
747474,
757575,
767676,
787878,
797979,
808080,
818181,
828282,
838383,
848484,
858585,
868686,
878787,
898989,
909090,
919191,
929292,
939393,
949494,
959595,
969696,
979797,
989898,
1010101,
2020202,
2121212,
2727272,
3030303,
4040404,
4242424,
5050505,
5151515,
5252525,
5454545,
5757575,
6060606,
6363636,
7070707,
8080808,
8181818,
8484848,
9090909,
10101010,
12121212,
13131313,
14141414,
15151515,
16161616,
17171717,
18181818,
19191919,
20202020,
21212121,
23232323,
24242424,
25252525,
26262626,
27272727,
28282828,
29292929,
30303030,
31313131,
32323232,
34343434,
35353535,
36363636,
37373737,
38383838,
39393939,
40404040,
41414141,
42424242,
43434343,
45454545,
46464646,
47474747,
48484848,
49494949,
50505050,
51515151,
52525252,
53535353,
54545454,
56565656,
57575757,
58585858,
59595959,
60606060,
61616161,
62626262,
63636363,
64646464,
65656565,
67676767,
68686868,
69696969,
70707070,
71717171,
72727272,
73737373,
74747474,
75757575,
76767676,
78787878,
79797979,
80808080,
81818181,
82828282,
83838383,
84848484,
85858585,
86868686,
87878787,
89898989,
90909090,
91919191,
92929292,
93939393,
94949494,
95959595,
96969696,
97979797,
98989898,
101010101,
202020202,
212121212,
272727272,
303030303,
404040404,
424242424,
505050505,
515151515,
525252525,
545454545,
575757575,
606060606,
636363636,
707070707,
808080808,
818181818,
848484848,
909090909,
1010101010,
1212121212,
1313131313,
1414141414,
1515151515,
1616161616,
1717171717,
1818181818,
1919191919.