text: import random as r
  
  while True:
      msg = input().split()
      if msg[0] == "BEGIN":
          side_len = int(msg[3])
      elif msg[0] == "DESTROY":
          print("NONE")
      elif msg[0] == "ACTIVATE":
          print("VERTEX %d,%d"%(r.randrange(side_len), r.randrange(side_len)), flush=True)
      elif msg[0] == "SCORE":
          break
  