n=int(input())
data=[]
for i in range(1,n+1):
    data.append([sum(map(int,bin(i)[2:])),-1])
data[0][1]=1

def check(index,count=2):
    global data
    if index-data[index][0]>=0:
        if data[index-data[index][0]][1]>count or data[index-data[index][0]][1]==-1:
            data[index-data[index][0]][1]=count
            check(index-data[index][0],count+1)
    if index+data[index][0]<len(data):
        if data[index+data[index][0]][1]>count or data[index+data[index][0]][1]==-1:
            data[index+data[index][0]][1]=count
            check(index+data[index][0],count+1)
check(0)
print(data[-1][1])