while true do

for a=1,100 do
	redstone.setBundledOutput("back",colors.black)
	sleep(1.5)
	redstone.setBundledOutput("back",0)
	redstone.setBundledOutput("back",colors.pink)
	sleep(6)
	redstone.setBundledOutput("back",0)
    sleep(2)
end

for b=1,20 do
	redstone.setBundledOutput("back",colors.orange)
	sleep(1.5)
	redstone.setBundledOutput("back",0)
	sleep(1)
end

for c=1,100 do
	redstone.setBundledOutput("back",colors.brown)
	sleep(1.5)
	redstone.setBundledOutput("back",0)
	redstone.setBundledOutput("back",colors.pink)
	sleep(6)
	redstone.setBundledOutput("back",0)
    sleep(2)
end

for d=1,20 do
	redstone.setBundledOutput("back",colors.orange)
	sleep(1.5)
	redstone.setBundledOutput("back",0)
	sleep(1)
end

end