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(raw_input())

s = []
while n > 0:
    s.append(n % 16)
    n /= 16


holes = {
        0: 1,
        1: 0,
        2: 0,
        3: 0,
        4: 0,
        5: 0,
        6: 1,
        7: 0,
        8: 2,
        9: 1,
        10: 1, # A
        11: 2, # B
        12: 0, # C
        13: 1, # D
        14: 0, # E
        15: 0  # F
        }

print sum(map(lambda x: holes[x], s))

