Get Redstone Input

print ("Nom du consomateur : ")
local user = read()
print ("Nombre de EU consomer : ")
local eu = read()
print ("Prix au EU : ")
local prix = read()
total = eu*prix
payer = ("Vous devez payer : ")
printer = peripheral.wrap("right")
print("Impresion . . .")
os.sleep(2)
printer.newPage()
printer.write(user)
printer.setCursorPos(1, 1)
printer.write(payer)
printer.setCursorPos(1, 2)
printer.write(total)
printer.endPage()
shell.run("reboot")