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
o = ['0','4','6','9','a','d']
oo = ['8','b']
cnt = 0
n = list(hex(int(input())))
x = ''
for i in range(2,len(n)):
    x += n[i]
x = str(x)
for j in x:
    if j in o:
        cnt += 1
    elif j in oo:
        cnt += 2
print(cnt)