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
# 
#  website: http://codeforces.com/contest/784/problem/B
#  desp: convert to hex, then count the number of zero
#  status:
#
x = raw_input()
num = hex(int(x))
s = str(num)[2:]
# print s
ans = 0
cnt = [1, 0, 0, 0, 1, 0, 1, 0, 2, 1, 1, 2, 0, 1, 0, 0]
for ch in s:
    if (ch >= '0') and (ch <= '9'):
        now = int(ch)
    if (ch>='a') and (ch <='f'):
        now = 10+ord(ch)-ord('a')
    # print now
    ans = ans+cnt[now]
print ans
