import sys
from collections import Counter
def run(a: str):
a = int(a)
a = dict(Counter(list(bin(a)[2:])))
return a["1"]
for line in sys.stdin:
a = line.strip()
print(run(a))
import sys
from collections import Counter
def run(a: str):
a = int(a)
a = dict(Counter(list(bin(a)[2:])))
return a["1"]
for line in sys.stdin:
a = line.strip()
print(run(a))