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
def main():
    n = int(input())
    n = hex(n)[2:]
    ans = 0
    for c in n:
        if c == '0' or c == '6' or c == '9' or c == 'a' or c == 'd' or c == '4':
            ans += 1
        if c == '8' or c == 'b':
            ans += 2
    print(ans)

if __name__ == '__main__':
    main()
