C++ By getting 4 storages you get another storage

if player:getStorageValue(9000) > 0 and player:getStorageValue(9001) > 0 and player:getStorageValue(9002) > 0 and player:getStorageValue(9003) > 0 then
    player:setStorageValue(9004, 1)
end

if getPlayerStorageValue(cid, 9000) > 0 and getPlayerStorageValue(cid, 9001) > 0 and getPlayerStorageValue(cid, 9002) > 0 and getPlayerStorageValue(cid, 9003) > 0 then
   setPlayerStorageValue(cid, 9004, 1)
end

local config = {
   storages = {9000, 9001, 9002, 9003},   --Storages
   amount_needed = 4,                 --How many must be completed
   extra_storage = 9004               --The storage you get if you meet the requirements.
}
local amount_done = 0 --Don't touch, this will keep track of how many you've done

for i, storage in pairs(config.storages) do
   if player:getStorageValue(storage) > 0 then
       amount_done = amount_done+1
   end
   if amount_done >= amount_needed then
       player:setStorageValue(config.extra_storage, 1)
   end
end

local config = {
   storages = {9000, 9001, 9002, 9003},  --Storages
   amount_needed = 4,                   --How many must be completed
   extra_storage = 9004,              --The storage you get if you meet the requirements.
}
local amount_done = 0 --Don't touch, this will keep track of how many you've done

for i, storage in pairs(config.storages) do
   if getPlayerStorageValue(cid, storage) > 0 then
       amount_done = amount_done+1
   end
   if amount_done >= amount_needed then
       setPlayerStorageValue(cid, config.extra_storage, 1)
   end
end