Nuclear Reactor Computer Craft

p = peripheral.wrap("bottom")
term.clear()
term.setCursorPos(1,1)
slot = {2,4,10,12,14,17,19,21,23,28,30,32,37,39,41,47,49}
function tablelength(T)
  local count = 0
  for _ in pairs(T) do count = count + 1 end
  return count
end
function isSetted(slotnum)
    local tableInfo = p.getStackInSlot(slotnum)
    if tableInfo == nil then
        return false
    else
        return true
    end
end
function make(slotnum)
    if isSetted(slotnum) == false then
            turtle.select(1)
        turtle.dropDown()
        p.pullIntoSlot("down",1,1,slotnum)
    end
   sleep(1)
end
while true do
    for i = 1,tablelength(slot) do
        make(slot[i])
    end
    sleep(5)
end