#include <bits/stdc++.h> //萬用標頭檔
using namespace std;
int main(){
int A ; //設定變數A
cin >> A ;
if (A > 0) { //若A大於零, 輸出"1"
cout << "1" ;
} else if (A == 0) { //若A等於零, 輸出"0" (C++中, "等於"的符號為"==")
cout << "0" ;
} else if (A < 0) { //若A小於零, 輸出"-1"
cout << "-1" ;
}
}