import machine
import utime
gerel=machine.Pin(2,machine.Pin.OUT)
while True:
    n=10
    a=input()
    if a=="on":
        gerel.value(1)
    if a=="off":
        gerel.value(0)
    if a=="flash":
        while n>0:
            gerel.toggle()
            utime.sleep(0.2)
            n=n-1