Lots of points, but suits blocked

Q 10 9
J 10 9 8
K Q J 3 2
6
N
W E
S
J 3
A K Q
A
A J 7 5 4 3 2
Dealer South
West North East South
1
Pass 1 Pass 3NT
End
3NT
by S
Lead: 6

East wins the first trick with the ace and plays to partner's king. West leads a third round and East shows out. Plan the play.