First numbers that belong to both sets:
10,
21,
121,
323,
767,
989,
56789,
98767,
98789,
212321,
232343,
3456787,
5432123,
5656543,
9876787,
45678767,
321012323,
343212343,
343456567,
345676787,
565654543,
567654343,
567656543,
567676567,
567676787,
567678767,
767656789,
787676767,
789878989,
789898987,
989878787,
989878789.