n = int(input())
movable_number = []
move = 0
isend = False
def go(i, move):
    global movable_number
    global n_max
    global isend
    if isend == True:
        return
    if i in movable_number:
        return
    if i > n:
        return
    if i == 0:
        return
    if i == n:
        print(move)
        isend = True
        return
    movable_number.append(i)
    s = bin(i)
    num_one = s[2:].count('1')
    foward = i + num_one
    back = i - num_one
    go(foward, move + 1)
    go(back, move + 1)

i = 1
go(1, 1)
print('end')