First numbers that belong to both sets:
1,
2,
3,
4,
5,
6,
7,
8,
9,
11,
12,
15,
22,
24,
33,
36,
44,
48,
55,
66,
77,
88,
99,
111,
112,
115,
122,
124,
126,
128,
135,
144,
155,
168,
222,
224,
244,
248,
288,
333,
336,
366,
444,
448,
488,
555,
666,
777,
888,
999,
1111,
1112,
1113,
1115,
1116,
1122,
1124,
1128,
1144,
1155,
1222,
1224,
1236,
1244,
1248,
1266,
1288,
1335,
1344,
1368,
1444,
1448,
1488,
1555,
1888,
2222,
2224,
2226,
2244,
2248,
2288,
2444,
2448,
2488,
2688,
2888,
3333,
3336,
3339,
3366,
3444,
3555,
3666,
3888,
4444,
4448,
4488,
4888,
5555,
6666,
6888,
7777,
8888,
9999,
11111,
11112,
11115,
11122,
11124,
11128,
11133,
11136,
11144,
11155,
11166,
11222,
11224,
11226,
11244,
11248,
11288,
11355,
11444,
11448,
11488,
11555,
11688,
11888,
12222,
12224,
12244,
12248,
12288,
12336,
12366,
12444,
12448,
12488,
12666,
12888,
13335,
13344,
13368,
13377,
13488,
14444,
14448,
14488,
14688,
14888,
15555,
18888,
22222,
22224,
22236,
22244,
22248,
22266,
22288,
22344,
22368,
22444,
22448,
22488,
22888,
23448,
23688,
24444,
24448,
24488,
24888,
26688,
27888,
28888,
33333,
33336,
33366,
33399,
33444,
33555,
33666,
33888,
34488,
36666,
36888,
44444,
44448,
44488,
44688,
44888,
48888,
55555,
66666,
66888,
77777,
88888,
99999,
111111,
111112,
111115,
111122,
111124,
111126,
111128,
111135,
111144,
111155,
111168,
111222,
111224,
111244,
111248,
111288,
111333,
111336,
111339,
111366,
111444,
111448,
111488,
111555,
111666,
111888,
112222,
112224,
112236,
112244,
112248,
112266,
112288,
112344,
112368,
112444,
112448,
112488,
112888,
113337,
113355,
113448,
113688,
114444,
114448,
114488,
114888,
115555,
116688,
117999,
118888,
122222,
122224,
122226,
122244,
122248,
122288,
122444,
122448,
122488,
122688,
122888,
123336,
123366,
123444,
123666,
123888,
124444,
124448,
124488,
124888,
126666,
126888,
128888,
133335,
133344,
133368,
133488,
134448,
134688,
135555,
138888,
144444.
Some larger examples :
377777799,
378888888,
444444444,
444444448,
444444488,
444444888,
444446688,
444448888,
444468888,
444478888,
444488888,
444666888,
444888888,
446666688,
446688888,
448888888,
466668888,
468888888,
477777888,
488888888.