while true do

m = peripheral.wrap("top")
m.clear()
m.setCursorPos(1,1)
m.write("-----Welcome to the station-----")
m.setCursorPos(1,3)
m.write("Blue Line: ")
m.setCursorPos(1,4)
m.write("Yellow Line: ")
m.setCursorPos(1,5)
m.write("Red Line: ")

m.setCursorPos(15,3)
if colors.test (redstone.getBundledInput("back"), colors.blue) then
  m.write("Arrived")
else
  m.write("Away")
end
m.setCursorPos(15,4)
if colors.test (redstone.getBundledInput("back"), colors.yellow) then
  m.write("Arrived")
else
  m.write("Away")
end
m.setCursorPos(15,5)
if colors.test (redstone.getBundledInput("back"), colors.red) then
  m.write("Arrived")
else
  m.write("Away")
end



sleep(5)
end