fox777777777

from threading import Thread
import time
stop = False
def start():
	for i in range(0,21):
		while not stop:
			print(i)
			time.sleep(2)
			break

		
thread = Thread(target=start)
thread.start()		
while True:
	p = input()
	if p == 'да':
		print(1)
		stop = True