data:
id1,id2
1 3
1 8
1 10
1 11
2 3
2 10
2 11
3 2
3 18
3 20
4 3
4 8
5 3
5 10
5 11
5 40
5 45
5 50
6 1
6 59
6 70
I won't get all id1 with id2 = 3,10,11.
For example, id1=4 only with id2=3, should not return.
The results should be
id1
1
2
5