First numbers that belong to both sets:
12,
54,
56,
78,
210,
234,
432,
456,
654,
678,
876,
1212,
1232,
3210,
3234,
3432,
3456,
5432,
5454,
5456,
5656,
5676,
7656,
7878,
9876,
21012,
21210,
21234,
23212,
23232,
23454,
43212,
43232,
43434,
43456,
45432,
45456,
45654,
45656,
45678,
65454,
65676,
67656,
67676,
67878,
76545,
87654,
87678,
87876,
89898,
101010,
101232,
121210,
121212,
123210,
123234,
123432,
123456,
321012,
321210,
321232,
321234,
323232,
323454,
323456,
343210,
343212,
343232,
343434,
345432,
345456,
345654,
345678,
454545,
543210,
543234,
543432,
543456,
545454,
545676,
565432,
565434,
565656,
567654,
567678,
567876,
656565,
765432,
765456,
765654,
765678,
767676,
767898,
787656,
787878,
789876,
987654,
987678,
987876,
989898,
2101212,
2101232,
2121012,
2121210,
2121234,
2123212,
2123232,
2123454,
2321010,
2321232,
2323212,
2323434,
2343210,
2343232,
2343234,
2343432,
2343456,
2345454,
2345456,
2345676,
4321212,
4321232,
4323210,
4323234,
4323432,
4323456,
4343232,
4343432,
4343454,
4343456,
4345432,
4345434,
4345456,
4345656,
4543210,
4543212,
4543432,
4543434,
4543456,
4545432,
4545456,
4545654,
4545678,
4565454,
4565456,
4565656,
4565676,
4567656,
4567878,
5654565,
6543210,
6543232,
6543234,
6543432,
6543456,
6545454,
6545656,
6545676,
6565434,
6565656,
6567654,
6567678,
6567876,
6765432,
6765456,
6765654,
6765678,
6767656,
6767676,
6767898,
6787656,
6787676,
6787878,
6789876,
8765432,
8765454,
8765456,
8765676,
8767656,
8767878,
8787654,
8787678,
8787876,
8789898,
8987676,
8987898,
8989876,
8989878,
10101012,
10101210,
10101232,
10101234,
10121010,
10121012,
10121232,
10123212,
10123232,
10123432,
10123434,
10123456,
12101010,
12101012,
12101210,
12101232,
12121212,
12123210,
12123232,
12123234,
12123432,
12123456,
12321012,
12321210,
12321232,
12321234,
12323212,
12323232,
12323432,
12323454,
12323456,
12343212,
12343232,
12343434,
12343456,
12345432,
12345456,
12345654,
12345676,
12345678,
32101212,
32121012,
32121210,
32121232,
32121234,
32123210,
32123232,
32123432,
32123454,
32123456,
32321010,
32321212,
32321232,
32323212,
32323232,
32323434,
32323456,
32343210,
32343232,
32343234,
32343432,
32343456,
32345432,
32345454,
32345456,
32345656,
32345676,
34321210,
34321212,
34321232,
34323210,
34323212,
34323232,
34323234,
34323432,
34323456,
34343232,
34343454,
34343456,
34345432,
34345434,
34345656,
34543212,
34543232,
34543432,
34543434,
34543456,
34545432,
34545456,
34545654,
34545678,
34565432,
34565454,
34565676,
34567656,
34567676,
34567876,
34567878,
43454565.