First numbers that belong to both sets:
1,
8,
11,
88,
96,
111,
888,
986,
1111,
8888,
9886,
9966,
11111,
88888,
98886,
99866,
111111,
888888,
988886,
998866,
999666,
1111111,
8888888,
9888886,
9988866,
9998666,
11111111,
88888888,
98888886,
99888866,
99988666,
99996666,
111111111,
888888888,
988888886,
998888866,
999888666,
999986666,
1111111111,
8888888888,
9888888886,
9988888866,
9998888666,
9999886666,
9999966666,
11111111111,
88888888888,
98888888886,
99888888866,
99988888666,
99998886666,
99999866666,
111111111111,
888888888888,
988888888886,
998888888866,
999888888666,
999988886666,
999998866666,
999999666666,
1111111111111,
8888888888888,
9888888888886,
9988888888866,
9998888888666,
9999888886666,
9999988866666,
9999998666666,
11111111111111,
88888888888888,
98888888888886,
99888888888866,
99988888888666,
99998888886666,
99999888866666,
99999988666666,
99999996666666,
111111111111111,
888888888888888,
988888888888886,
998888888888866,
999888888888666,
999988888886666,
999998888866666,
999999888666666,
999999986666666.