/*   /\_/\
    (= ._.)
    / >0  \>1
*/
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

ll n;
int main()  
{
  freopen("so.inp" , "r" , stdin);
  freopen("so.out" , "w" , stdout);

  ios::sync_with_stdio(false);
  cin.tie(0);

  cin >> n;
  if (n > 0) cout << 1;
  else if (n < 0) cout << -1;
  else cout << 0;
  return 0;
}

import sys
sys.stdin=open("so.inp","r")
sys.stdout=open("so.out","w")
a=int(input())
if a>0:
    print(1)
elif a<0:
    print(-1)
else:
    print(0)