First numbers that belong to both sets:
101,
202,
212,
303,
313,
404,
414,
505,
515,
606,
616,
707,
717,
808,
818,
909,
919,
31313,
42424,
51515,
62626,
71717,
82828,
91919,
101010,
121212,
141414,
161616,
181818,
242424,
262626,
282828,
383838,
1212121,
2121212,
3131313,
3232323,
4141414,
4242424,
4343434,
5252525,
5353535,
6262626,
6363636,
7272727,
7373737,
8282828,
8383838,
8484848,
9393939,
9494949,
20202020,
21212121,
23232323,
24242424,
25252525,
26262626,
27272727,
30303030,
46464646,
47474747,
48484848,
49494949.