old_contents: __author__ = 'Johannes'
  import Adafruit_BBIO.GPIO as GPIO
  import time
  
  P = "USR3"
  
  GPIO.setup(P, GPIO.OUT)
  for i in xrange(100):
          if i % 2 == 0:
                  GPIO.output(P, GPIO.HIGH)
                  print "HIGH"
          else:
                  GPIO.output(P, GPIO.LOW)
                  print "LOW"
          time.sleep(0.5)
  GPIO.cleanup()
new_contents: __author__ = 'Johannes'
  import Adafruit_BBIO.GPIO as GPIO
  import time
  
  P = "P8_3"
  
  GPIO.setup(P, GPIO.OUT)
  for i in xrange(100):
          if i % 2 == 0:
                  GPIO.output(P, GPIO.HIGH)
                  print "HIGH"
          else:
                  GPIO.output(P, GPIO.LOW)
                  print "LOW"
          time.sleep(0.5)
  GPIO.cleanup()
subject: Read input