First numbers that belong to both sets:
21,
42,
63,
84,
111,
222,
333,
444,
511,
531,
555,
666,
711,
730,
732,
774,
777,
888,
954,
999,
4311,
4330,
5410,
6310,
6331,
6443,
7322,
7542,
7543,
8110,
8622,
8660,
8841,
9740,
9854,
33310,
42111,
55422,
62110,
65541,
65544,
66620,
74322,
76211,
77511,
77733,
84222,
84441,
86331,
86643,
87432,
88221,
88732,
88865,
93222,
94411,
95553,
96411,
97220,
97551,
97770,
99930,
99972,
332110,
432211,
433333,
533322,
543333,
544433,
555432,
664220,
665321,
666441,
754331,
754442,
755541,
766611,
772220,
775521,
776331,
777411,
864422,
866111,
866666,
875421,
875552,
876630,
877511,
877530,
877644,
887430,
887610,
888330,
888885,
943220,
965331,
977610,
985311,
986610,
986652,
987330,
987510,
987732,
995430,
996330,
997410,
998532,
998751,
999921,
3111111,
3221110,
5111110,
5443221,
5532211,
5533311,
5544422,
5552211,
6222221,
6222222,
6433220,
6442220,
6532220,
6541111,
6642111,
6653332,
6662111,
7442211,
7522221,
7552211,
7555221,
7655430,
7655542,
7665330,
7665510,
7744421,
7765410,
7766532,
7775310,
7777332,
7777731,
8543332,
8654430,
8654432,
8666310,
8744430,
8764410,
8765532,
8772111,
8774310,
8776332,
8776442,
8776443,
8844331,
8853330,
8873310,
8875110,
8877443,
8877531,
8877555,
8877640,
8884110,
8884332,
8886555,
8887720,
9333333,
9443331,
9444411,
9622211,
9655410,
9663330,
9665532,
9742221,
9744330,
9744444,
9764310,
9766110,
9773310,
9774210,
9777642,
9833211,
9863310,
9865110,
9877433,
9882211,
9884433,
9885555,
9887664,
9888522,
9944422,
9953310,
9966642,
9977771,
9988752,
9998832,
9999881,
9999882,
9999950,
22211110,
32221111,
33333321,
43222211,
44332220,
44422220,
44442111,
55222220,
64222221,
64442222,
64444221,
65421111,
65544330,
66633330,
66655110,
66666533,
66666642,
72222211,
73222220,
74444211,
75433221,
75443211,
75444444,
75544410,
76443330,
76542111,
76644210,
76663332,
77444310,
77544210,
77554110,
77643210,
77653332,
77666442,
77666511,
77743332,
77752110,
77754422,
77755431,
77774440,
77777322,
84444330,
85533330,
85553310,
85555554,
86444422,
86532111,
86544210,
86553210,
86633310,
86642111,
86643322,
87444211,
87543210,
87544110,
87544332,
87553110,
87733110,
87733332,
87775311,
87777777,
88633110,
88642110,
88651110,
88655551,
88664440,
88754440,
88775521,
88831110,
88844440,
88865320,
88866311,
88877751,
88884222,
88887543,
88887650,
88888421,
88888550,
94444321,
95433330,
95544210,
95553210,
96432221.
Some larger examples :
98888831,
99432210,
99631110,
99744431,
99764322,
99765552,
99773320,
99833331,
99853221,
99873111,
99876432,
99886550,
99886554,
99974422,
99984432,
99988722,
99998554,
99999321,
99999963,
99999965.