6 24 21 12 18 2 0 9 3 15 30
0
x
3
=
5
x
3
=
8
x
3
=
4
x
3
=
1
x
3
=
2
x
3
=
10
x
3
=
6
x
3
=
7
x
3
=
3
x
3
=
9
x
3
=