First numbers that belong to both sets:
23,
67,
89,
101,
787,
4567,
32321,
78787,
456767,
678989,
878987,
898787,
3210101,
3454343,
3456767,
5654567,
5676767,
7676567,
7678787,
7876567,
7878989,
7898789,
23232101,
23456567,
23456789,
67656767,
67678789.