# vyrobit dlouhy retezec

#pocet = int(input())


a = "o"
while len(a) < 1_000_000:
    a = a + a






N = 0
while True:
    pocet = N
    N += 1
    if N % 1000 == 0:
        print(pocet)
    s = ""
    while pocet > 0:
        s = s + "o"
        pocet -= 1

    #print( s )