First numbers that belong to both sets:
3,
5,
7,
11,
101,
151,
181,
191,
313,
10301,
10501,
12821,
13831,
13931,
16061,
16361,
19891,
19991,
31513,
32323,
34843,
35053,
37573,
72227,
73037,
76367,
77477,
78887,
79397,
79697,
79997,
93239,
94349,
94649,
94849,
94949,
95959,
97379,
97579,
98389,
1003001,
1055501,
1062601,
1129211,
1134311,
1163611,
1183811,
1186811,
1193911,
1201021,
1208021,
1212121,
1221221,
1242421,
1250521,
1253521,
1262621,
1268621,
1281821,
1286821,
1362631,
1486841,
1496941,
1532351,
1535351,
1572751,
1580851,
1589851,
1598951,
1609061,
1633361,
1660661,
1685861,
1707071,
1712171,
1734371,
1748471,
1755571,
1802081,
1820281,
1842481,
1883881,
1908091,
1924291,
1963691,
1976791,
1987891,
1995991,
3001003,
3007003,
3064603,
3072703,
3091903,
3222223,
3228223,
3315133,
3329233,
3331333,
3424243,
3443443,
3449443,
3470743,
3479743,
3528253,
3569653,
3601063,
3716173,
3746473,
3858583,
3863683,
3871783,
3899983,
7041407,
7069607,
7082807,
7093907,
7118117,
7129217,
7159517,
7194917,
7257527,
7388837,
7401047,
7475747,
7489847,
7519157,
7527257,
7540457,
7600067,
7611167,
7630367,
7666667,
7715177,
7750577,
7778777,
7783877,
7868687,
7930397,
7933397,
7960697,
7977797,
9002009,
9067609,
9103019,
9174719,
9200029,
9209029,
9230329,
9231329,
9271729,
9277729,
9286829,
9318139,
9324239,
9397939,
9414149,
9440449,
9493949,
9547459,
9561659,
9624269,
9650569,
9686869,
9709079,
9724279,
9743479,
9795979,
9818189,
9845489,
9888889,
9896989,
9907099,
9918199,
9919199,
9965699,
100060001,
100111001,
100161001,
100767001,
101141101,
101414101,
101616101,
101949101,
102454201,
102838201,
103060301,
103282301,
103323301,
103515301,
103575301,
104222401,
105343501,
106444601,
106464601,
106545601,
106909601,
107636701,
107868701,
108434801,
108565801,
108686801,
109111901,
109575901,
109777901,
109818901,
110111011,
110232011,
110505011,
110747011,
111070111,
111757111,
112111211,
112212211,
112494211,
112636211,
112878211,
113565311,
113636311,
113888311,
114353411,
114818411,
115464511,
115545511,
115797511,
116010611,
116424611,
116868611,
117101711,
117262711,
117959711,
118717811,
118818811,
118959811,
119202911,
119696911,
120565021,
120868021,
120989021,
121818121,
122262221,
122333221,
123292321,
123989321,
124131421,
124656421,
124737421,
125838521,
127212721,
127636721,
127686721,
127929721,
129494921,
130464031,
130585031,
130818031,
130858031,
131030131,
131111131,
131646131,
134232431,
134858431,
134909431,
135515531,
136222631,
136818631,
137040731,
137363731,
137424731,
137636731,
138040831,
138242831,
138454831,
139161931,
139383931,
139717931,
140030041,
141484141,
141848141,
142030241,
142272241.
Some larger examples :
993343399,
993373399,
993838399,
993959399,
994656499,
994777499,
994878499,
995414599,
996464699,
996494699,
996565699,
996686699,
996818699,
997393799,
998111899,
998282899,
998757899,
998979899,
999434999,
999454999.