local function t(t,a,R)for a=#t,a,-1 do local R=t[a]R.Index=a+1 t[a+1]=R end R.Index=a t[a]=R end

local function insert(t,i,v)
	for n = #t,i,-1 do
		local v = t[n]
		v.Index = n+1
		t[n+1] = v
	end
	v.Index = i
	t[i] = v
end
