143165576
 1919020031
 1204252996
 210637432
 724264821
 1741
 619489590
 1199537418
 1075765759
 747976826
 638486017
 58438190
 1285316221
 186925426
 1180540990
 833393692
 1818960378
 2000000000
 0
 1309028227
 514714359
 624205168
 1795248373
 643201595
 1304312649

14 3 3 4 5 2 4 4 2 4 6 4 3 4 5 3 5 4 1 5 3 4 5 5 8
n = int(input())
hex = ""
if n == 0: hex = "0"
while n:
    if n % 16 <= 9: hex += str(n % 16)
    else: hex += chr(n % 16 + 55)
    n //= 16
cnt = 0
for i in hex:
    if i in ['4', '6', '9', '0', 'A', 'D']: cnt += 1
    elif i in ['8', 'B']: cnt += 2
print(cnt)
