First numbers that belong to both sets:
123,
321,
1234,
4321,
10123,
32101,
34345,
43454,
45434,
54343,
56567,
56789,
76565,
76789,
98765,
98767,
123434,
345434,
434321,
434543,
454567,
765454,
767678,
876767,
1212323,
1234343,
1234565,
1234567,
3232121,
3232343,
3234545,
3432323,
3434321,
3454345,
3456787,
5434543,
5434567,
5454323,
5654321,
7654321,
7654345,
7876543,
34323434,
34567678,
34567898,
43432343,
78987878,
87676543,
87878987,
89876543.