666

b = game.Lighting:GetChildren()
sky = false
ID = 666

for i = 1, #b do
if b[i]:IsA("Sky") then
b[i]:SetSkybox(ID)
sky = true
end
end
if sky == false then
a = Instance.new("Sky", game.Lighting)
a:SetSkybox(ID)
sky = true
end