First numbers that belong to both sets:
55,
77,
111,
333,
777,
999,
1111,
1133,
1177,
2233,
2255,
3355,
4411,
4433,
4477,
4499,
5533,
5555,
5599,
6611,
6655,
6677,
7711,
7744,
7777,
7799,
8833,
8855,
8899,
9911,
9955,
9977,
11111,
11133,
11155,
11199,
11333,
11555,
11999,
22233,
22255,
22333,
22555,
22999,
33355,
33399,
33777,
44411,
44455,
44477,
44999,
55111,
55555,
55577,
55777,
55999,
66333,
66611,
66655,
66677,
66699,
77111,
77333,
77555,
77755,
77799,
88111,
88333,
88777,
88833,
88855,
88999,
99111,
99333,
99777,
99911,
99955,
110011,
110077,
111133,
111199,
111999,
112211,
112255,
112277,
113311,
113333,
113377,
114433,
114455,
114499,
115511,
115555,
115577,
116611,
116677,
116699,
117755,
117799,
118811,
118855,
118877,
119911,
119933,
119977,
119999,
220055,
220099,
221111,
221155,
222211,
222233,
222277,
222299,
222777,
223333,
223399,
224411,
224477,
225511,
225533,
225577,
225599,
226633,
226655,
226699,
227711,
227755,
227777,
228833,
228877,
228899,
229933,
229955,
229999,
330011,
330055,
330077,
331111,
331133,
331199,
332233,
332255,
332299,
333111,
333311,
333377,
333777,
334499,
335533,
335555,
335599,
336611,
336655,
337711,
337733,
337777,
338833,
338855,
338899,
339911,
339955,
339977,
440077,
440099,
441133,
441155,
442211,
443311,
443377,
443399,
444333,
444455,
444499,
445511,
445555,
445577,
446611,
446633,
446677,
446699,
447733,
447755,
447799,
448811,
449911,
449933,
449977,
449999,
550033,
550055,
551111,
551155,
551177,
552211,
552233,
552277,
552299,
553333,
553355,
553399,
554411,
555511,
555533,
555577,
555777,
556633,
556699,
557711,
557777,
558811,
558833,
558877,
558899,
559955,
559999,
660011,
660055,
660077,
661111,
661177,
661199,
662233,
662255,
662299,
663311,
663355,
663377,
664433,
664477,
664499,
665533,
665555,
665599,
666611,
666655,
666677,
666777,
667711,
667733,
667777,
667799,
668833,
668855,
668899,
669911,
669955,
770011,
770077,
770099,
771133,
771155,
771199,
772277,
773377,
773399,
774400,
774433,
774455,
774499,
775511,
775577,
776611,
776633,
776677,
777733,
777799,
777999,
778811,
778855,
778877,
779911,
779933,
779999,
880055,
880099,
881111,
881155,
881177,
882211.
Some larger examples :
9993311,
9993377,
9994411,
9994433,
9994477,
9995511,
9995555,
9996611,
9996655,
9996677,
9996699,
9997733,
9997799,
9998811,
9998833,
9998855,
9998877,
9998899,
9999911,
9999977.