Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
When this card is Normal or Special Summoned: Choose 1 Level 4 or lower Warrior-Type monster from your Deck, except "Field-Commander Rahz", and place it on top of your Deck.
--戦士ラーズ
--Field-Commander Rahz
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_F)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetOperation(s.operation)
	c:RegisterEffect(e1)
	local e2=e1:Clone()
	e2:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e2)
end
function s.filter(c)
	return c:IsLevelBelow(4) and c:IsRace(RACE_WARRIOR) and c:GetCode()~=id
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,aux.Stringid(id,1))
	local g=Duel.SelectMatchingCard(tp,s.filter,tp,LOCATION_DECK,0,1,1,nil)
	local tc=g:GetFirst()
	if tc then
		Duel.ShuffleDeck(tp)
		Duel.MoveSequence(tc,0)
		Duel.ConfirmDecktop(tp,1)
	end
end