Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
When this card is Normal Summoned: You can send any number of cards from your hand to the Graveyard, then target the same number of cards on the field; return those targets to the hand.
--赤鬼
--Red Ogre
local s,id=GetID()
function s.initial_effect(c)
	--to hand
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_TOHAND)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetCost(s.cost)
	e1:SetTarget(s.target)
	e1:SetOperation(s.operation)
	c:RegisterEffect(e1)
end
function s.costfilter(c)
	return c:IsAbleToGraveAsCost()
end
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.costfilter,tp,LOCATION_HAND,0,1,e:GetHandler()) end
	local rt=Duel.GetTargetCount(Card.IsAbleToHand,tp,LOCATION_ONFIELD,LOCATION_ONFIELD,nil)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
	local cg=Duel.SelectMatchingCard(tp,s.costfilter,tp,LOCATION_HAND,0,1,rt,nil)
	Duel.SendtoGrave(cg,REASON_COST)
	e:SetLabel(#cg)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsOnField() and chkc:IsAbleToHand() end
	if chk==0 then return Duel.IsExistingTarget(Card.IsAbleToHand,tp,LOCATION_ONFIELD,LOCATION_ONFIELD,1,nil) end
	local ct=e:GetLabel()
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_RTOHAND)
	local eg=Duel.SelectTarget(tp,Card.IsAbleToHand,tp,LOCATION_ONFIELD,LOCATION_ONFIELD,ct,ct,nil)
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,eg,ct,0,0)
end
function s.operation(e,tp,eg,ep,ev,re,r,rp,chk)
	local tg=Duel.GetChainInfo(0,CHAININFO_TARGET_CARDS)
	local rg=tg:Filter(Card.IsRelateToEffect,nil,e)
	if #rg>0 then 
		Duel.SendtoHand(rg,nil,REASON_EFFECT)
	end
end