First numbers that belong to both sets:
12,
18,
56,
66,
78,
88,
114,
138,
222,
246,
258,
366,
368,
678,
1146,
1148,
1158,
1266,
1338,
1446,
1578,
1888,
2238,
2334,
2778,
3378,
3556,
3558,
3668,
3678,
4458,
4566,
11116,
11166,
11226,
11228,
11238,
11288,
11334,
11478,
11788,
12234,
12378,
12666,
12678,
13458,
14466,
14588,
15558,
17778,
22566,
23334,
23466,
24448,
24556,
24558,
24666,
24668,
25566,
26778,
33345,
33378,
34446,
34458,
34468,
36678,
44466,
45556,
47778,
47888,
56778,
66668,
66678,
111126,
111138,
111234,
111246,
111558,
112268,
112278,
112458,
112588,
113466,
113478,
114478,
115556,
115568,
116778,
122334,
122358,
122444,
122466,
123378,
123558,
123666,
123788,
124458,
125778,
135678,
137778,
144678,
144788,
156666,
156678,
222234,
222236,
222366,
223338,
223458,
224778,
227778,
233346,
234556,
234678,
244468,
244578,
246678,
255556,
255666,
334578,
336678,
344478,
344488,
345558,
347788,
355578,
444556,
444558,
444668,
555558,
566778,
999999,
1111134,
1111458,
1112226,
1112356,
1113558,
1116678,
1122258,
1122666,
1123338,
1123444,
1123556,
1124778,
1127778,
1133346,
1133466,
1136778,
1144578,
1155666,
1155678,
1222228,
1222278,
1222566,
1223348,
1223466,
1234578,
1235668,
1235778,
1236788,
1244778,
1245558,
1255578,
1266688,
1333444,
1335678,
1344678,
1345566,
1444458,
1444578,
1445668,
1466778,
1677788,
2222238,
2222466,
2222778,
2223366,
2223568,
2223678,
2233338,
2233446,
2233578,
2234478,
2235666,
2235678,
2244558,
2244666,
2267778,
2333346,
2333778,
2334666,
2344458,
2344578,
2355556,
2355558,
2355666,
2355668,
2357778,
2447788,
2455566,
2456778,
2466678,
2555888,
2666778,
3333558,
3334458,
3334566,
3335668,
3345666,
3346888,
3356668,
3357788,
3377778,
3445566,
3455778,
3557788,
3666666,
3666678,
3777788,
4444468,
4445588,
4555578,
4556778,
4566678,
5556666,
5556678,
5588888,
5666668,
5777778,
6688888,
11112388,
11112666,
11112668,
11113446,
11113458,
11113566,
11114444,
11122244,
11122266,
11122278,
11122338,
11122458,
11124678,
11125568,
11133678,
11134446,
11136688,
11145558,
11222238,
11222466,
11226678,
11234468,
11234778,
11244666,
11245556,
11245566,
11245578,
11246788,
11333778,
11344458,
11346666,
11445558,
11445666,
11447778,
11447888,
11456778,
11567778,
12222222,
12222258,
12223338,
12225556,
12225666,
12234678,
12235578,
12235678,
12244458,
12266778,
12333666,
12336666,
12344466.
Some larger examples :
26666668,
26777778,
33333356,
33333666,
33344444,
33344466,
33345678,
33456688,
34444446,
34555578,
34667778,
36677788,
44445666,
44455566,
44467888,
45666678,
45677778,
55556778,
55577778,
55577788.