solar

local solar = 0;
local sensor;
local flag;
while true do
  solar = redstone.getAnalogInput("back");
  sensor = redstone.getInput("top");
  if solar == 15 then
    flag = true;
    while flag == true do
      solar = redstone.getAnalogInput("back");
      redstone.setOutput("right", true);
    end
    redstone.setOutput("right", false);
  elseif sensor == false
    flag = true;
    while flag == true do
      sensor = redstone.getInput("top");
      redstone.setOutput("right", true);
    end
    redstone.setOutput("right", false);
  end
  os.sleep(1);
end