First numbers that belong to both sets:
297,
5050,
7272,
7777,
9999,
187110,
500500,
818181,
999999,
11111112,
24752475,
25252525,
36363636,
49995000,
50005000,
74747475,
88888888,
99999999,
243902440,
332999667,
1111111111,
2020202020,
4090859091,
4132841328,
4999950000,
5000050000,
7979797980,
9756097560,
9999999999,
19481019481,
44444444445,
74074074075.