import sys

int1 = lambda x: int(x) - 1

# input = lambda: sys.stdin.buffer.readline()
input = lambda: sys.stdin.readline().rstrip()
ii = lambda: int(input())
i1 = lambda: int1(input())
mi = lambda: map(int, input().split())
mi1 = lambda: map(int1, input().split())
li = lambda: list(mi())
li1 = lambda: list(mi1())
lli = lambda n: [li() for _ in range(n)]

INF = float("inf")
# mod = int(1e9 + 7)
mod = 998244353


def f(n):
    if n == 1:
        return 0
    res = INF
    m = 0
    for j in range(32):
        if n == (1 << j):
            res = min(res, 1)
        if (1 << j) > n and ((1 << j) - 1) % n == 0:
            res = min(res, 2)
        if n % (1 << j) == 0:
            m = max(m, j)
    if m > 0:
        res = min(res, 1 + f(n >> m))
    return res


print(f(ii()))