One player per spawn, how to make it?

I would like that there is one player per spawn, just one! How to make it? The problem with my script is that there many players teleported in one spawn but i want ONE PLAYER per spawn how to make?

My script:

for n, player in pairs(game.Players:GetChildren()) do
    if player.Character:FindFirstChild('Humanoid') ~= nil and player.Character.Humanoid:FindFirstChild('Alive') ~= nil then
        player.Character:MoveTo(spwn[math.random(1,#spwn)].Position)
    end
end

Thanks