RaspberryPi #1 Control LED with Command From Terminal

import RPi.GPIO as GPIO
import time
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)
GPIO.setup(25, GPIO.OUT)
GPIO.setup(26, GPIO.OUT)
GPIO.setup(27, GPIO.OUT)
while 1:
    a=input("Please Input String ")
    if a=="ON 1":
        GPIO.output(25,1)
    if a=="ON 2":
        GPIO.output(26,1)
    if a=="ON 3":
        GPIO.output(27,1)
    if a=="OFF 1":
        GPIO.output(25,0)
    if a=="OFF 2":
        GPIO.output(26,0)
    if a=="OFF 3":
        GPIO.output(27,0)
    if a=="ALL OFF":
        GPIO.output(25,0)
        GPIO.output(27,0)
        GPIO.output(26,0)
    if a=="ALL ON":
        GPIO.output(25,1)
        GPIO.output(27,1)
        GPIO.output(26,1)