from collections import deque
n = int(input())
q = deque()
dp = [10**12]*(n+1)
dp[1] = 1
q.append(1)

def pc(x):
  r = 0
  for i in range(6):
    r += (x>>i)%2
  return r

while q:
  i = q.popleft()
  p = pc(i)
  if 0 < i+p <= n and dp[i+p] > dp[i]+1:
    dp[i+p] = dp[i]+1
    q.append(i+p)
  if 0 < i-p <= n and dp[i-p] > dp[i]+1:
    dp[i-p] = dp[i]+1
    q.append(i-p)

if dp[n] == 10**12:
  print(-1)
else:
  print(dp[n])