Both hands have the same distribution so there is no way to develop a suit for a discard.  The only possibility is an end play.  Look at the diamond suit. Whichever side plays this suit first will lose a trick - this is referred to as a 'frozen suit'.  Declarer can force the defenders to play this suit first by drawing trumps (in 3 rounds or less), playing A,K & Q of Hearts, A clubs and another club.  East wins this and now has to lead a heart or club for a ruff and discard or leads a diamond.  South lets this run to the N hand (J from West A from North) and then leads back to hand playing East for the other honour.

You have 5 top winners (2, 2 and 1). Diamonds will produce 2 tricks and clubs will give 3 tricks even if the finess fails.  But there are possible losers of 3 spades, 1 diamond and 1 club.

The one card that will give west an entry in the A.  If South first finesses the clubs, East will continue to attack spades and declarer’s second stop in that suit is removed.  Now when West wins A he will cash 3 spade tricks.

The correct play:

Declarer ducks the first trick then wins the second with K.  Diamonds must be attacked first.  West wins A and plays spades again. Declarer wins with A and now takes the club finesse. East wins but has no spades left.  If East had a spade left, then they would be breaking 4 - 4 and only two spade tricks would be lost.

The rule: When the defenders have to be given the lead twice is to allow the danger hand in first and his partner in second when hopefully he has run out of partner’s suit.