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
"""
http://codeforces.com/contest/784/problem/B
"""
def to_hex(n):
    return hex(n)[2:].upper()


def closed_loops(x):
    d = {'0': 1, '1': 0, '2': 0, '3': 0, '4': 1, '5': 0, '6': 1, '7': 0, '8': 2, '9': 1,
         'A': 1, 'B': 2, 'C': 0, 'D': 1, 'E': 0, 'F': 0}
    total = 0
    a = to_hex(x)
    for c in a:
        total += d[c]
    return total


def main():
    n = int(input())
    print(closed_loops(n))


if __name__ == '__main__':
    main()
