# coding: utf-8

n = int(input())

position = 1
history = []

result = -1
while True:
    
    history.append(position)
    
    if position == n:
        result = len(history)
        break

    steps = str(format(position, 'b')).count('1')
    
    if position + steps > n:
        position -= steps
    else:
        position += steps
    
    if position in history:
        break

print(result)