#include<stdio.h>

int sign(double x);

int main()

{

double x;

scanf("%lf",&x);

printf("%d",sign(x));

return 0;

}

int sign(double x)

{int a;

if(x>0)

{

a=1;

printf("%d",a);}  

else

if(x==0){

a=0;

printf("%d",a);}  

else

{

a=-1;

printf("%d",a);} return a;}