def Bit_sugorogu2():
    N = int(input())
    List = []
    masu = 1
    cnt = 1
    while(True):
        List.append(masu)
        binary = bin(masu)
        num = binary.count("1")
        if(masu + num > N):
            break
        masu += num
        cnt += 1
    if(masu == N):
        return cnt
    else:
        now_masu = 0
        while(now_masu != 1):
            now_masu = masu
            now_cnt = cnt + 1
            binary = bin(now_masu)
            num = binary.count("1")
            usiro_masu =  masu - num
            while(usiro_masu < N):
                if(usiro_masu in List):
                    break
                List.append(usiro_masu)
                binary = bin(usiro_masu)
                num = binary.count("1")
                usiro_masu += num
                now_cnt += 1
            if(usiro_masu == N):
                return now_cnt
            cnt += 1
            masu -= num 
        return -1
        
        

print(Bit_sugorogu2())